1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
6 Contributed by the Center for Software Science at the
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include "alloca-conf.h"
30 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX)
34 #include "safe-ctype.h"
36 #include <sys/param.h>
38 #include <machine/reg.h>
41 /* Magic not defined in standard HP-UX header files until 8.0 */
43 #ifndef CPU_PA_RISC1_0
44 #define CPU_PA_RISC1_0 0x20B
45 #endif /* CPU_PA_RISC1_0 */
47 #ifndef CPU_PA_RISC1_1
48 #define CPU_PA_RISC1_1 0x210
49 #endif /* CPU_PA_RISC1_1 */
51 #ifndef CPU_PA_RISC2_0
52 #define CPU_PA_RISC2_0 0x214
53 #endif /* CPU_PA_RISC2_0 */
55 #ifndef _PA_RISC1_0_ID
56 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
57 #endif /* _PA_RISC1_0_ID */
59 #ifndef _PA_RISC1_1_ID
60 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
61 #endif /* _PA_RISC1_1_ID */
63 #ifndef _PA_RISC2_0_ID
64 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
65 #endif /* _PA_RISC2_0_ID */
67 #ifndef _PA_RISC_MAXID
68 #define _PA_RISC_MAXID 0x2FF
69 #endif /* _PA_RISC_MAXID */
72 #define _PA_RISC_ID(__m_num) \
73 (((__m_num) == _PA_RISC1_0_ID) || \
74 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
75 #endif /* _PA_RISC_ID */
77 /* HIUX in it's infinite stupidity changed the names for several "well
78 known" constants. Work around such braindamage. Try the HPUX version
79 first, then the HIUX version, and finally provide a default. */
81 #define EXEC_AUX_ID HPUX_AUX_ID
84 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
85 #define EXEC_AUX_ID HIUX_AUX_ID
92 /* Size (in chars) of the temporary buffers used during fixup and string
95 #define SOM_TMP_BUFSIZE 8192
97 /* Size of the hash table in archives. */
98 #define SOM_LST_HASH_SIZE 31
100 /* Max number of SOMs to be found in an archive. */
101 #define SOM_LST_MODULE_LIMIT 1024
103 /* Generic alignment macro. */
104 #define SOM_ALIGN(val, alignment) \
105 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
107 /* SOM allows any one of the four previous relocations to be reused
108 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
109 relocations are always a single byte, using a R_PREV_FIXUP instead
110 of some multi-byte relocation makes object files smaller.
112 Note one side effect of using a R_PREV_FIXUP is the relocation that
113 is being repeated moves to the front of the queue. */
115 unsigned char *reloc;
119 /* This fully describes the symbol types which may be attached to
120 an EXPORT or IMPORT directive. Only SOM uses this formation
121 (ELF has no need for it). */
124 SYMBOL_TYPE_ABSOLUTE,
128 SYMBOL_TYPE_MILLICODE,
130 SYMBOL_TYPE_PRI_PROG,
131 SYMBOL_TYPE_SEC_PROG,
134 struct section_to_type {
139 /* Assorted symbol information that needs to be derived from the BFD symbol
140 and/or the BFD backend private symbol data. */
141 struct som_misc_symbol_info {
142 unsigned int symbol_type;
143 unsigned int symbol_scope;
144 unsigned int arg_reloc;
145 unsigned int symbol_info;
146 unsigned int symbol_value;
147 unsigned int priv_level;
148 unsigned int secondary_def;
151 /* Forward declarations */
153 static bfd_boolean som_mkobject
155 static const bfd_target * som_object_setup
156 PARAMS ((bfd *, struct header *, struct som_exec_auxhdr *, unsigned long));
157 static bfd_boolean setup_sections
158 PARAMS ((bfd *, struct header *, unsigned long));
159 static const bfd_target * som_object_p
161 static bfd_boolean som_write_object_contents
163 static bfd_boolean som_slurp_string_table
165 static unsigned int som_slurp_symbol_table
167 static long som_get_symtab_upper_bound
169 static long som_canonicalize_reloc
170 PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
171 static long som_get_reloc_upper_bound
172 PARAMS ((bfd *, sec_ptr));
173 static unsigned int som_set_reloc_info
174 PARAMS ((unsigned char *, unsigned int, arelent *, asection *,
175 asymbol **, bfd_boolean));
176 static bfd_boolean som_slurp_reloc_table
177 PARAMS ((bfd *, asection *, asymbol **, bfd_boolean));
178 static long som_get_symtab
179 PARAMS ((bfd *, asymbol **));
180 static asymbol * som_make_empty_symbol
182 static void som_print_symbol
183 PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
184 static bfd_boolean som_new_section_hook
185 PARAMS ((bfd *, asection *));
186 static bfd_boolean som_bfd_copy_private_symbol_data
187 PARAMS ((bfd *, asymbol *, bfd *, asymbol *));
188 static bfd_boolean som_bfd_copy_private_section_data
189 PARAMS ((bfd *, asection *, bfd *, asection *));
190 static bfd_boolean som_bfd_copy_private_bfd_data
191 PARAMS ((bfd *, bfd *));
192 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
193 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
194 static bfd_boolean som_bfd_is_local_label_name
195 PARAMS ((bfd *, const char *));
196 static bfd_boolean som_set_section_contents
197 PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
198 static bfd_boolean som_get_section_contents
199 PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
200 static bfd_boolean som_set_arch_mach
201 PARAMS ((bfd *, enum bfd_architecture, unsigned long));
202 static bfd_boolean som_find_nearest_line
203 PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
204 const char **, unsigned int *));
205 static void som_get_symbol_info
206 PARAMS ((bfd *, asymbol *, symbol_info *));
207 static asection * bfd_section_from_som_symbol
208 PARAMS ((bfd *, struct symbol_dictionary_record *));
210 PARAMS ((unsigned int));
211 static bfd_reloc_status_type hppa_som_reloc
212 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
213 static void som_initialize_reloc_queue
214 PARAMS ((struct reloc_queue *));
215 static void som_reloc_queue_insert
216 PARAMS ((unsigned char *, unsigned int, struct reloc_queue *));
217 static void som_reloc_queue_fix
218 PARAMS ((struct reloc_queue *, unsigned int));
219 static int som_reloc_queue_find
220 PARAMS ((unsigned char *, unsigned int, struct reloc_queue *));
221 static unsigned char * try_prev_fixup
222 PARAMS ((bfd *, int *, unsigned char *, unsigned int, struct reloc_queue *));
224 static unsigned char * som_reloc_skip
225 PARAMS ((bfd *, unsigned int, unsigned char *, unsigned int *,
226 struct reloc_queue *));
227 static unsigned char * som_reloc_addend
228 PARAMS ((bfd *, bfd_vma, unsigned char *, unsigned int *,
229 struct reloc_queue *));
230 static unsigned char * som_reloc_call
231 PARAMS ((bfd *, unsigned char *, unsigned int *, arelent *, int,
232 struct reloc_queue *));
233 static unsigned long som_count_spaces
235 static unsigned long som_count_subspaces
237 static int compare_syms
238 PARAMS ((const void *, const void *));
239 static int compare_subspaces
240 PARAMS ((const void *, const void *));
241 static unsigned long som_compute_checksum
243 static bfd_boolean som_prep_headers
245 static int som_sizeof_headers
246 PARAMS ((bfd *, bfd_boolean));
247 static bfd_boolean som_finish_writing
249 static bfd_boolean som_build_and_write_symbol_table
251 static void som_prep_for_fixups
252 PARAMS ((bfd *, asymbol **, unsigned long));
253 static bfd_boolean som_write_fixups
254 PARAMS ((bfd *, unsigned long, unsigned int *));
255 static bfd_boolean som_write_space_strings
256 PARAMS ((bfd *, unsigned long, unsigned int *));
257 static bfd_boolean som_write_symbol_strings
258 PARAMS ((bfd *, unsigned long, asymbol **, unsigned int, unsigned *,
260 static bfd_boolean som_begin_writing
262 static reloc_howto_type * som_bfd_reloc_type_lookup
263 PARAMS ((bfd *, bfd_reloc_code_real_type));
264 static char som_section_type
265 PARAMS ((const char *));
266 static int som_decode_symclass
267 PARAMS ((asymbol *));
268 static bfd_boolean som_bfd_count_ar_symbols
269 PARAMS ((bfd *, struct lst_header *, symindex *));
271 static bfd_boolean som_bfd_fill_in_ar_symbols
272 PARAMS ((bfd *, struct lst_header *, carsym **syms));
273 static bfd_boolean som_slurp_armap
275 static bfd_boolean som_write_armap
276 PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
277 static void som_bfd_derive_misc_symbol_info
278 PARAMS ((bfd *, asymbol *, struct som_misc_symbol_info *));
279 static bfd_boolean som_bfd_prep_for_ar_write
280 PARAMS ((bfd *, unsigned int *, unsigned int *));
281 static unsigned int som_bfd_ar_symbol_hash
282 PARAMS ((asymbol *));
283 static bfd_boolean som_bfd_ar_write_symbol_stuff
284 PARAMS ((bfd *, unsigned int, unsigned int, struct lst_header,
286 static bfd_boolean som_is_space
287 PARAMS ((asection *));
288 static bfd_boolean som_is_subspace
289 PARAMS ((asection *));
290 static bfd_boolean som_is_container
291 PARAMS ((asection *, asection *));
292 static bfd_boolean som_bfd_free_cached_info
294 static bfd_boolean som_bfd_link_split_section
295 PARAMS ((bfd *, asection *));
297 /* Map SOM section names to POSIX/BSD single-character symbol types.
299 This table includes all the standard subspaces as defined in the
300 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
301 some reason was left out, and sections specific to embedded stabs. */
303 static const struct section_to_type stt[] = {
305 {"$SHLIB_INFO$", 't'},
306 {"$MILLICODE$", 't'},
309 {"$UNWIND_START$", 't'},
313 {"$SHLIB_DATA$", 'd'},
315 {"$SHORTDATA$", 'g'},
320 {"$GDB_STRINGS$", 'N'},
321 {"$GDB_SYMBOLS$", 'N'},
325 /* About the relocation formatting table...
327 There are 256 entries in the table, one for each possible
328 relocation opcode available in SOM. We index the table by
329 the relocation opcode. The names and operations are those
330 defined by a.out_800 (4).
332 Right now this table is only used to count and perform minimal
333 processing on relocation streams so that they can be internalized
334 into BFD and symbolically printed by utilities. To make actual use
335 of them would be much more difficult, BFD's concept of relocations
336 is far too simple to handle SOM relocations. The basic assumption
337 that a relocation can be completely processed independent of other
338 relocations before an object file is written is invalid for SOM.
340 The SOM relocations are meant to be processed as a stream, they
341 specify copying of data from the input section to the output section
342 while possibly modifying the data in some manner. They also can
343 specify that a variable number of zeros or uninitialized data be
344 inserted on in the output segment at the current offset. Some
345 relocations specify that some previous relocation be re-applied at
346 the current location in the input/output sections. And finally a number
347 of relocations have effects on other sections (R_ENTRY, R_EXIT,
348 R_UNWIND_AUX and a variety of others). There isn't even enough room
349 in the BFD relocation data structure to store enough information to
350 perform all the relocations.
352 Each entry in the table has three fields.
354 The first entry is an index into this "class" of relocations. This
355 index can then be used as a variable within the relocation itself.
357 The second field is a format string which actually controls processing
358 of the relocation. It uses a simple postfix machine to do calculations
359 based on variables/constants found in the string and the relocation
362 The third field specifys whether or not this relocation may use
363 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
364 stored in the instruction.
368 L = input space byte count
369 D = index into class of relocations
370 M = output space byte count
371 N = statement number (unused?)
373 R = parameter relocation bits
375 T = first 32 bits of stack unwind information
376 U = second 32 bits of stack unwind information
377 V = a literal constant (usually used in the next relocation)
378 P = a previous relocation
380 Lower case letters (starting with 'b') refer to following
381 bytes in the relocation stream. 'b' is the next 1 byte,
382 c is the next 2 bytes, d is the next 3 bytes, etc...
383 This is the variable part of the relocation entries that
384 makes our life a living hell.
386 numerical constants are also used in the format string. Note
387 the constants are represented in decimal.
389 '+', "*" and "=" represents the obvious postfix operators.
390 '<' represents a left shift.
394 Parameter Relocation Bits:
398 Previous Relocations: The index field represents which in the queue
399 of 4 previous fixups should be re-applied.
401 Literal Constants: These are generally used to represent addend
402 parts of relocations when these constants are not stored in the
403 fields of the instructions themselves. For example the instruction
404 addil foo-$global$-0x1234 would use an override for "0x1234" rather
405 than storing it into the addil itself. */
407 struct fixup_format {
412 static const struct fixup_format som_fixup_formats[256] = {
413 /* R_NO_RELOCATION */
414 { 0, "LD1+4*=" }, /* 0x00 */
415 { 1, "LD1+4*=" }, /* 0x01 */
416 { 2, "LD1+4*=" }, /* 0x02 */
417 { 3, "LD1+4*=" }, /* 0x03 */
418 { 4, "LD1+4*=" }, /* 0x04 */
419 { 5, "LD1+4*=" }, /* 0x05 */
420 { 6, "LD1+4*=" }, /* 0x06 */
421 { 7, "LD1+4*=" }, /* 0x07 */
422 { 8, "LD1+4*=" }, /* 0x08 */
423 { 9, "LD1+4*=" }, /* 0x09 */
424 { 10, "LD1+4*=" }, /* 0x0a */
425 { 11, "LD1+4*=" }, /* 0x0b */
426 { 12, "LD1+4*=" }, /* 0x0c */
427 { 13, "LD1+4*=" }, /* 0x0d */
428 { 14, "LD1+4*=" }, /* 0x0e */
429 { 15, "LD1+4*=" }, /* 0x0f */
430 { 16, "LD1+4*=" }, /* 0x10 */
431 { 17, "LD1+4*=" }, /* 0x11 */
432 { 18, "LD1+4*=" }, /* 0x12 */
433 { 19, "LD1+4*=" }, /* 0x13 */
434 { 20, "LD1+4*=" }, /* 0x14 */
435 { 21, "LD1+4*=" }, /* 0x15 */
436 { 22, "LD1+4*=" }, /* 0x16 */
437 { 23, "LD1+4*=" }, /* 0x17 */
438 { 0, "LD8<b+1+4*=" }, /* 0x18 */
439 { 1, "LD8<b+1+4*=" }, /* 0x19 */
440 { 2, "LD8<b+1+4*=" }, /* 0x1a */
441 { 3, "LD8<b+1+4*=" }, /* 0x1b */
442 { 0, "LD16<c+1+4*=" }, /* 0x1c */
443 { 1, "LD16<c+1+4*=" }, /* 0x1d */
444 { 2, "LD16<c+1+4*=" }, /* 0x1e */
445 { 0, "Ld1+=" }, /* 0x1f */
447 { 0, "Lb1+4*=" }, /* 0x20 */
448 { 1, "Ld1+=" }, /* 0x21 */
450 { 0, "Lb1+4*=" }, /* 0x22 */
451 { 1, "Ld1+=" }, /* 0x23 */
453 { 0, "L4=" }, /* 0x24 */
454 /* R_DATA_ONE_SYMBOL */
455 { 0, "L4=Sb=" }, /* 0x25 */
456 { 1, "L4=Sd=" }, /* 0x26 */
458 { 0, "L4=Sb=" }, /* 0x27 */
459 { 1, "L4=Sd=" }, /* 0x28 */
461 { 0, "L4=" }, /* 0x29 */
462 /* R_REPEATED_INIT */
463 { 0, "L4=Mb1+4*=" }, /* 0x2a */
464 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
465 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
466 { 3, "Ld1+=Me1+=" }, /* 0x2d */
467 { 0, "" }, /* 0x2e */
468 { 0, "" }, /* 0x2f */
470 { 0, "L4=RD=Sb=" }, /* 0x30 */
471 { 1, "L4=RD=Sb=" }, /* 0x31 */
472 { 2, "L4=RD=Sb=" }, /* 0x32 */
473 { 3, "L4=RD=Sb=" }, /* 0x33 */
474 { 4, "L4=RD=Sb=" }, /* 0x34 */
475 { 5, "L4=RD=Sb=" }, /* 0x35 */
476 { 6, "L4=RD=Sb=" }, /* 0x36 */
477 { 7, "L4=RD=Sb=" }, /* 0x37 */
478 { 8, "L4=RD=Sb=" }, /* 0x38 */
479 { 9, "L4=RD=Sb=" }, /* 0x39 */
480 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
481 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
482 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
483 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
484 /* R_SHORT_PCREL_MODE */
485 { 0, "" }, /* 0x3e */
486 /* R_LONG_PCREL_MODE */
487 { 0, "" }, /* 0x3f */
489 { 0, "L4=RD=Sb=" }, /* 0x40 */
490 { 1, "L4=RD=Sb=" }, /* 0x41 */
491 { 2, "L4=RD=Sb=" }, /* 0x42 */
492 { 3, "L4=RD=Sb=" }, /* 0x43 */
493 { 4, "L4=RD=Sb=" }, /* 0x44 */
494 { 5, "L4=RD=Sb=" }, /* 0x45 */
495 { 6, "L4=RD=Sb=" }, /* 0x46 */
496 { 7, "L4=RD=Sb=" }, /* 0x47 */
497 { 8, "L4=RD=Sb=" }, /* 0x48 */
498 { 9, "L4=RD=Sb=" }, /* 0x49 */
499 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
500 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
501 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
502 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
504 { 0, "" }, /* 0x4e */
505 { 0, "" }, /* 0x4f */
507 { 0, "L4=SD=" }, /* 0x50 */
508 { 1, "L4=SD=" }, /* 0x51 */
509 { 2, "L4=SD=" }, /* 0x52 */
510 { 3, "L4=SD=" }, /* 0x53 */
511 { 4, "L4=SD=" }, /* 0x54 */
512 { 5, "L4=SD=" }, /* 0x55 */
513 { 6, "L4=SD=" }, /* 0x56 */
514 { 7, "L4=SD=" }, /* 0x57 */
515 { 8, "L4=SD=" }, /* 0x58 */
516 { 9, "L4=SD=" }, /* 0x59 */
517 { 10, "L4=SD=" }, /* 0x5a */
518 { 11, "L4=SD=" }, /* 0x5b */
519 { 12, "L4=SD=" }, /* 0x5c */
520 { 13, "L4=SD=" }, /* 0x5d */
521 { 14, "L4=SD=" }, /* 0x5e */
522 { 15, "L4=SD=" }, /* 0x5f */
523 { 16, "L4=SD=" }, /* 0x60 */
524 { 17, "L4=SD=" }, /* 0x61 */
525 { 18, "L4=SD=" }, /* 0x62 */
526 { 19, "L4=SD=" }, /* 0x63 */
527 { 20, "L4=SD=" }, /* 0x64 */
528 { 21, "L4=SD=" }, /* 0x65 */
529 { 22, "L4=SD=" }, /* 0x66 */
530 { 23, "L4=SD=" }, /* 0x67 */
531 { 24, "L4=SD=" }, /* 0x68 */
532 { 25, "L4=SD=" }, /* 0x69 */
533 { 26, "L4=SD=" }, /* 0x6a */
534 { 27, "L4=SD=" }, /* 0x6b */
535 { 28, "L4=SD=" }, /* 0x6c */
536 { 29, "L4=SD=" }, /* 0x6d */
537 { 30, "L4=SD=" }, /* 0x6e */
538 { 31, "L4=SD=" }, /* 0x6f */
539 { 32, "L4=Sb=" }, /* 0x70 */
540 { 33, "L4=Sd=" }, /* 0x71 */
542 { 0, "" }, /* 0x72 */
543 { 0, "" }, /* 0x73 */
544 { 0, "" }, /* 0x74 */
545 { 0, "" }, /* 0x75 */
546 { 0, "" }, /* 0x76 */
547 { 0, "" }, /* 0x77 */
549 { 0, "L4=Sb=" }, /* 0x78 */
550 { 1, "L4=Sd=" }, /* 0x79 */
552 { 0, "" }, /* 0x7a */
553 { 0, "" }, /* 0x7b */
554 { 0, "" }, /* 0x7c */
555 { 0, "" }, /* 0x7d */
556 { 0, "" }, /* 0x7e */
557 { 0, "" }, /* 0x7f */
558 /* R_CODE_ONE_SYMBOL */
559 { 0, "L4=SD=" }, /* 0x80 */
560 { 1, "L4=SD=" }, /* 0x81 */
561 { 2, "L4=SD=" }, /* 0x82 */
562 { 3, "L4=SD=" }, /* 0x83 */
563 { 4, "L4=SD=" }, /* 0x84 */
564 { 5, "L4=SD=" }, /* 0x85 */
565 { 6, "L4=SD=" }, /* 0x86 */
566 { 7, "L4=SD=" }, /* 0x87 */
567 { 8, "L4=SD=" }, /* 0x88 */
568 { 9, "L4=SD=" }, /* 0x89 */
569 { 10, "L4=SD=" }, /* 0x8q */
570 { 11, "L4=SD=" }, /* 0x8b */
571 { 12, "L4=SD=" }, /* 0x8c */
572 { 13, "L4=SD=" }, /* 0x8d */
573 { 14, "L4=SD=" }, /* 0x8e */
574 { 15, "L4=SD=" }, /* 0x8f */
575 { 16, "L4=SD=" }, /* 0x90 */
576 { 17, "L4=SD=" }, /* 0x91 */
577 { 18, "L4=SD=" }, /* 0x92 */
578 { 19, "L4=SD=" }, /* 0x93 */
579 { 20, "L4=SD=" }, /* 0x94 */
580 { 21, "L4=SD=" }, /* 0x95 */
581 { 22, "L4=SD=" }, /* 0x96 */
582 { 23, "L4=SD=" }, /* 0x97 */
583 { 24, "L4=SD=" }, /* 0x98 */
584 { 25, "L4=SD=" }, /* 0x99 */
585 { 26, "L4=SD=" }, /* 0x9a */
586 { 27, "L4=SD=" }, /* 0x9b */
587 { 28, "L4=SD=" }, /* 0x9c */
588 { 29, "L4=SD=" }, /* 0x9d */
589 { 30, "L4=SD=" }, /* 0x9e */
590 { 31, "L4=SD=" }, /* 0x9f */
591 { 32, "L4=Sb=" }, /* 0xa0 */
592 { 33, "L4=Sd=" }, /* 0xa1 */
594 { 0, "" }, /* 0xa2 */
595 { 0, "" }, /* 0xa3 */
596 { 0, "" }, /* 0xa4 */
597 { 0, "" }, /* 0xa5 */
598 { 0, "" }, /* 0xa6 */
599 { 0, "" }, /* 0xa7 */
600 { 0, "" }, /* 0xa8 */
601 { 0, "" }, /* 0xa9 */
602 { 0, "" }, /* 0xaa */
603 { 0, "" }, /* 0xab */
604 { 0, "" }, /* 0xac */
605 { 0, "" }, /* 0xad */
607 { 0, "L4=Sb=" }, /* 0xae */
608 { 1, "L4=Sd=" }, /* 0xaf */
610 { 0, "L4=Sb=" }, /* 0xb0 */
611 { 1, "L4=Sd=" }, /* 0xb1 */
613 { 0, "L4=" }, /* 0xb2 */
615 { 0, "Te=Ue=" }, /* 0xb3 */
616 { 1, "Uf=" }, /* 0xb4 */
618 { 0, "" }, /* 0xb5 */
620 { 0, "" }, /* 0xb6 */
622 { 0, "" }, /* 0xb7 */
624 { 0, "R0=" }, /* 0xb8 */
625 { 1, "Rb4*=" }, /* 0xb9 */
626 { 2, "Rd4*=" }, /* 0xba */
628 { 0, "" }, /* 0xbb */
630 { 0, "" }, /* 0xbc */
632 { 0, "Nb=" }, /* 0xbd */
633 { 1, "Nc=" }, /* 0xbe */
634 { 2, "Nd=" }, /* 0xbf */
636 { 0, "L4=" }, /* 0xc0 */
638 { 0, "L4=" }, /* 0xc1 */
640 { 0, "" }, /* 0xc2 */
642 { 0, "" }, /* 0xc3 */
644 { 0, "" }, /* 0xc4 */
646 { 0, "" }, /* 0xc5 */
648 { 0, "" }, /* 0xc6 */
650 { 0, "" }, /* 0xc7 */
652 { 0, "" }, /* 0xc8 */
653 /* R_DATA_OVERRIDE */
654 { 0, "V0=" }, /* 0xc9 */
655 { 1, "Vb=" }, /* 0xca */
656 { 2, "Vc=" }, /* 0xcb */
657 { 3, "Vd=" }, /* 0xcc */
658 { 4, "Ve=" }, /* 0xcd */
660 { 0, "" }, /* 0xce */
662 { 0,"Sd=Vf=Ef=" }, /* 0xcf */
664 { 0, "Ob=" }, /* 0xd0 */
666 { 0, "Ob=Sd=" }, /* 0xd1 */
668 { 0, "Ob=Ve=" }, /* 0xd2 */
670 { 0, "P" }, /* 0xd3 */
671 { 1, "P" }, /* 0xd4 */
672 { 2, "P" }, /* 0xd5 */
673 { 3, "P" }, /* 0xd6 */
675 { 0, "" }, /* 0xd7 */
677 { 0, "" }, /* 0xd8 */
679 { 0, "" }, /* 0xd9 */
681 { 0, "Eb=Sd=Ve=" }, /* 0xda */
683 { 0, "Eb=Mb=" }, /* 0xdb */
685 { 0, "" }, /* 0xdc */
687 { 0, "Ob=Ve=" }, /* 0xdd */
689 { 0, "" }, /* 0xde */
690 { 0, "" }, /* 0xdf */
691 { 0, "" }, /* 0xe0 */
692 { 0, "" }, /* 0xe1 */
693 { 0, "" }, /* 0xe2 */
694 { 0, "" }, /* 0xe3 */
695 { 0, "" }, /* 0xe4 */
696 { 0, "" }, /* 0xe5 */
697 { 0, "" }, /* 0xe6 */
698 { 0, "" }, /* 0xe7 */
699 { 0, "" }, /* 0xe8 */
700 { 0, "" }, /* 0xe9 */
701 { 0, "" }, /* 0xea */
702 { 0, "" }, /* 0xeb */
703 { 0, "" }, /* 0xec */
704 { 0, "" }, /* 0xed */
705 { 0, "" }, /* 0xee */
706 { 0, "" }, /* 0xef */
707 { 0, "" }, /* 0xf0 */
708 { 0, "" }, /* 0xf1 */
709 { 0, "" }, /* 0xf2 */
710 { 0, "" }, /* 0xf3 */
711 { 0, "" }, /* 0xf4 */
712 { 0, "" }, /* 0xf5 */
713 { 0, "" }, /* 0xf6 */
714 { 0, "" }, /* 0xf7 */
715 { 0, "" }, /* 0xf8 */
716 { 0, "" }, /* 0xf9 */
717 { 0, "" }, /* 0xfa */
718 { 0, "" }, /* 0xfb */
719 { 0, "" }, /* 0xfc */
720 { 0, "" }, /* 0xfd */
721 { 0, "" }, /* 0xfe */
722 { 0, "" }, /* 0xff */
725 static const int comp1_opcodes[] = {
746 static const int comp2_opcodes[] = {
754 static const int comp3_opcodes[] = {
760 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
762 #define R_DLT_REL 0x78
766 #define R_AUX_UNWIND 0xcf
770 #define R_SEC_STMT 0xd7
773 /* And these first appeared in hpux10. */
774 #ifndef R_SHORT_PCREL_MODE
775 #define NO_PCREL_MODES
776 #define R_SHORT_PCREL_MODE 0x3e
779 #ifndef R_LONG_PCREL_MODE
780 #define R_LONG_PCREL_MODE 0x3f
792 #define R_LINETAB 0xda
795 #ifndef R_LINETAB_ESC
796 #define R_LINETAB_ESC 0xdb
799 #ifndef R_LTP_OVERRIDE
800 #define R_LTP_OVERRIDE 0xdc
804 #define R_COMMENT 0xdd
807 #define SOM_HOWTO(TYPE, NAME) \
808 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
810 static reloc_howto_type som_hppa_howto_table[] = {
811 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
812 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
813 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
814 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
815 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
816 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
817 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
818 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
819 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
820 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
821 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
822 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
823 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
824 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
825 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
826 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
827 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
828 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
829 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
830 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
831 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
832 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
833 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
834 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
835 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
836 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
837 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
838 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
839 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
840 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
841 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
842 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
843 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
844 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
845 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
846 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
847 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
848 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
849 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
850 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
851 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
852 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
853 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
854 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
855 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
856 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
857 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
858 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
859 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
860 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
861 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
862 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
863 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
864 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
865 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
866 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
867 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
868 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
869 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
870 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
871 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
872 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
873 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
874 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
875 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
876 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
877 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
878 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
879 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
880 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
881 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
882 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
883 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
884 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
885 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
886 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
887 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
888 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
889 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
890 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
891 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
892 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
893 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
894 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
895 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
896 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
897 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
898 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
899 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
900 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
901 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
902 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
903 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
904 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
905 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
906 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
907 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
908 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
909 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
910 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
911 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
912 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
913 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
914 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
915 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
916 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
917 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
918 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
919 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
920 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
921 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
922 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
923 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
924 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
925 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
926 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
927 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
928 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
929 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
930 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
931 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
932 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
933 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
934 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
935 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
936 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
937 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
938 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
939 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
940 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
941 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
942 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
943 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
944 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
945 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
946 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
947 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
948 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
949 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
950 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
951 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
952 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
953 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
954 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
955 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
956 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
957 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
958 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
959 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
960 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
961 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
962 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
963 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
964 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
965 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
966 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
967 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
968 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
969 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
970 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
971 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
972 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
973 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
974 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
975 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
976 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
977 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
978 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
979 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
980 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
981 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
982 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
983 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
984 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
985 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
986 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
987 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
988 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
989 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
990 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
991 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
992 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
993 SOM_HOWTO (R_EXIT, "R_EXIT"),
994 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
995 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
996 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
997 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
998 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
999 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
1000 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1001 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1002 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1003 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
1004 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
1005 SOM_HOWTO (R_FSEL, "R_FSEL"),
1006 SOM_HOWTO (R_LSEL, "R_LSEL"),
1007 SOM_HOWTO (R_RSEL, "R_RSEL"),
1008 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
1009 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
1010 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
1011 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
1012 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1013 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1014 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1015 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1016 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1017 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
1018 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
1019 SOM_HOWTO (R_COMP1, "R_COMP1"),
1020 SOM_HOWTO (R_COMP2, "R_COMP2"),
1021 SOM_HOWTO (R_COMP3, "R_COMP3"),
1022 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1023 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1024 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1025 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1026 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
1027 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
1028 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
1029 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
1030 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
1031 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
1032 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
1033 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1034 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1035 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1036 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1037 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1038 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1039 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1040 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1041 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1042 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1043 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1044 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1045 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1046 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1047 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1048 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1049 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1050 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1051 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1052 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1053 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1054 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1055 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1056 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1057 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1058 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1059 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1060 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1061 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1062 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1063 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1064 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1065 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1066 SOM_HOWTO (R_RESERVED, "R_RESERVED")
1069 /* Initialize the SOM relocation queue. By definition the queue holds
1070 the last four multibyte fixups. */
1073 som_initialize_reloc_queue (queue)
1074 struct reloc_queue *queue;
1076 queue[0].reloc = NULL;
1078 queue[1].reloc = NULL;
1080 queue[2].reloc = NULL;
1082 queue[3].reloc = NULL;
1086 /* Insert a new relocation into the relocation queue. */
1089 som_reloc_queue_insert (p, size, queue)
1092 struct reloc_queue *queue;
1094 queue[3].reloc = queue[2].reloc;
1095 queue[3].size = queue[2].size;
1096 queue[2].reloc = queue[1].reloc;
1097 queue[2].size = queue[1].size;
1098 queue[1].reloc = queue[0].reloc;
1099 queue[1].size = queue[0].size;
1101 queue[0].size = size;
1104 /* When an entry in the relocation queue is reused, the entry moves
1105 to the front of the queue. */
1108 som_reloc_queue_fix (queue, index)
1109 struct reloc_queue *queue;
1117 unsigned char *tmp1 = queue[0].reloc;
1118 unsigned int tmp2 = queue[0].size;
1119 queue[0].reloc = queue[1].reloc;
1120 queue[0].size = queue[1].size;
1121 queue[1].reloc = tmp1;
1122 queue[1].size = tmp2;
1128 unsigned char *tmp1 = queue[0].reloc;
1129 unsigned int tmp2 = queue[0].size;
1130 queue[0].reloc = queue[2].reloc;
1131 queue[0].size = queue[2].size;
1132 queue[2].reloc = queue[1].reloc;
1133 queue[2].size = queue[1].size;
1134 queue[1].reloc = tmp1;
1135 queue[1].size = tmp2;
1141 unsigned char *tmp1 = queue[0].reloc;
1142 unsigned int tmp2 = queue[0].size;
1143 queue[0].reloc = queue[3].reloc;
1144 queue[0].size = queue[3].size;
1145 queue[3].reloc = queue[2].reloc;
1146 queue[3].size = queue[2].size;
1147 queue[2].reloc = queue[1].reloc;
1148 queue[2].size = queue[1].size;
1149 queue[1].reloc = tmp1;
1150 queue[1].size = tmp2;
1156 /* Search for a particular relocation in the relocation queue. */
1159 som_reloc_queue_find (p, size, queue)
1162 struct reloc_queue *queue;
1164 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
1165 && size == queue[0].size)
1167 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1168 && size == queue[1].size)
1170 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1171 && size == queue[2].size)
1173 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1174 && size == queue[3].size)
1179 static unsigned char *
1180 try_prev_fixup (abfd, subspace_reloc_sizep, p, size, queue)
1181 bfd *abfd ATTRIBUTE_UNUSED;
1182 int *subspace_reloc_sizep;
1185 struct reloc_queue *queue;
1187 int queue_index = som_reloc_queue_find (p, size, queue);
1189 if (queue_index != -1)
1191 /* Found this in a previous fixup. Undo the fixup we
1192 just built and use R_PREV_FIXUP instead. We saved
1193 a total of size - 1 bytes in the fixup stream. */
1194 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1196 *subspace_reloc_sizep += 1;
1197 som_reloc_queue_fix (queue, queue_index);
1201 som_reloc_queue_insert (p, size, queue);
1202 *subspace_reloc_sizep += size;
1208 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1209 bytes without any relocation. Update the size of the subspace
1210 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1211 current pointer into the relocation stream. */
1213 static unsigned char *
1214 som_reloc_skip (abfd, skip, p, subspace_reloc_sizep, queue)
1218 unsigned int *subspace_reloc_sizep;
1219 struct reloc_queue *queue;
1221 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1222 then R_PREV_FIXUPs to get the difference down to a
1224 if (skip >= 0x1000000)
1227 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1228 bfd_put_8 (abfd, 0xff, p + 1);
1229 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1230 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1231 while (skip >= 0x1000000)
1234 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1236 *subspace_reloc_sizep += 1;
1237 /* No need to adjust queue here since we are repeating the
1238 most recent fixup. */
1242 /* The difference must be less than 0x1000000. Use one
1243 more R_NO_RELOCATION entry to get to the right difference. */
1244 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1246 /* Difference can be handled in a simple single-byte
1247 R_NO_RELOCATION entry. */
1250 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1251 *subspace_reloc_sizep += 1;
1254 /* Handle it with a two byte R_NO_RELOCATION entry. */
1255 else if (skip <= 0x1000)
1257 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1258 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1259 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1261 /* Handle it with a three byte R_NO_RELOCATION entry. */
1264 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1265 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1266 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1269 /* Ugh. Punt and use a 4 byte entry. */
1272 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1273 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1274 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1275 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1280 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1281 from a BFD relocation. Update the size of the subspace relocation
1282 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1283 into the relocation stream. */
1285 static unsigned char *
1286 som_reloc_addend (abfd, addend, p, subspace_reloc_sizep, queue)
1290 unsigned int *subspace_reloc_sizep;
1291 struct reloc_queue *queue;
1293 if (addend + 0x80 < 0x100)
1295 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1296 bfd_put_8 (abfd, addend, p + 1);
1297 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1299 else if (addend + 0x8000 < 0x10000)
1301 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1302 bfd_put_16 (abfd, addend, p + 1);
1303 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1305 else if (addend + 0x800000 < 0x1000000)
1307 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1308 bfd_put_8 (abfd, addend >> 16, p + 1);
1309 bfd_put_16 (abfd, addend, p + 2);
1310 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1314 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1315 bfd_put_32 (abfd, addend, p + 1);
1316 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1321 /* Handle a single function call relocation. */
1323 static unsigned char *
1324 som_reloc_call (abfd, p, subspace_reloc_sizep, bfd_reloc, sym_num, queue)
1327 unsigned int *subspace_reloc_sizep;
1330 struct reloc_queue *queue;
1332 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1333 int rtn_bits = arg_bits & 0x3;
1336 /* You'll never believe all this is necessary to handle relocations
1337 for function calls. Having to compute and pack the argument
1338 relocation bits is the real nightmare.
1340 If you're interested in how this works, just forget it. You really
1341 do not want to know about this braindamage. */
1343 /* First see if this can be done with a "simple" relocation. Simple
1344 relocations have a symbol number < 0x100 and have simple encodings
1345 of argument relocations. */
1347 if (sym_num < 0x100)
1359 case 1 << 8 | 1 << 6:
1360 case 1 << 8 | 1 << 6 | 1:
1363 case 1 << 8 | 1 << 6 | 1 << 4:
1364 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1367 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1368 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1372 /* Not one of the easy encodings. This will have to be
1373 handled by the more complex code below. */
1379 /* Account for the return value too. */
1383 /* Emit a 2 byte relocation. Then see if it can be handled
1384 with a relocation which is already in the relocation queue. */
1385 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1386 bfd_put_8 (abfd, sym_num, p + 1);
1387 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1392 /* If this could not be handled with a simple relocation, then do a hard
1393 one. Hard relocations occur if the symbol number was too high or if
1394 the encoding of argument relocation bits is too complex. */
1397 /* Don't ask about these magic sequences. I took them straight
1398 from gas-1.36 which took them from the a.out man page. */
1400 if ((arg_bits >> 6 & 0xf) == 0xe)
1403 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1404 if ((arg_bits >> 2 & 0xf) == 0xe)
1407 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1409 /* Output the first two bytes of the relocation. These describe
1410 the length of the relocation and encoding style. */
1411 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1412 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1414 bfd_put_8 (abfd, type, p + 1);
1416 /* Now output the symbol index and see if this bizarre relocation
1417 just happened to be in the relocation queue. */
1418 if (sym_num < 0x100)
1420 bfd_put_8 (abfd, sym_num, p + 2);
1421 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1425 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1426 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1427 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1433 /* Return the logarithm of X, base 2, considering X unsigned.
1434 Abort -1 if X is not a power or two or is zero. */
1442 /* Test for 0 or a power of 2. */
1443 if (x == 0 || x != (x & -x))
1446 while ((x >>= 1) != 0)
1451 static bfd_reloc_status_type
1452 hppa_som_reloc (abfd, reloc_entry, symbol_in, data,
1453 input_section, output_bfd, error_message)
1454 bfd *abfd ATTRIBUTE_UNUSED;
1455 arelent *reloc_entry;
1456 asymbol *symbol_in ATTRIBUTE_UNUSED;
1457 PTR data ATTRIBUTE_UNUSED;
1458 asection *input_section;
1460 char **error_message ATTRIBUTE_UNUSED;
1464 reloc_entry->address += input_section->output_offset;
1465 return bfd_reloc_ok;
1467 return bfd_reloc_ok;
1470 /* Given a generic HPPA relocation type, the instruction format,
1471 and a field selector, return one or more appropriate SOM relocations. */
1474 hppa_som_gen_reloc_type (abfd, base_type, format, field, sym_diff, sym)
1478 enum hppa_reloc_field_selector_type_alt field;
1482 int *final_type, **final_types;
1484 final_types = (int **) bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1485 final_type = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1486 if (!final_types || !final_type)
1489 /* The field selector may require additional relocations to be
1490 generated. It's impossible to know at this moment if additional
1491 relocations will be needed, so we make them. The code to actually
1492 write the relocation/fixup stream is responsible for removing
1493 any redundant relocations. */
1500 final_types[0] = final_type;
1501 final_types[1] = NULL;
1502 final_types[2] = NULL;
1503 *final_type = base_type;
1509 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1510 if (!final_types[0])
1512 if (field == e_tsel)
1513 *final_types[0] = R_FSEL;
1514 else if (field == e_ltsel)
1515 *final_types[0] = R_LSEL;
1517 *final_types[0] = R_RSEL;
1518 final_types[1] = final_type;
1519 final_types[2] = NULL;
1520 *final_type = base_type;
1525 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1526 if (!final_types[0])
1528 *final_types[0] = R_S_MODE;
1529 final_types[1] = final_type;
1530 final_types[2] = NULL;
1531 *final_type = base_type;
1536 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1537 if (!final_types[0])
1539 *final_types[0] = R_N_MODE;
1540 final_types[1] = final_type;
1541 final_types[2] = NULL;
1542 *final_type = base_type;
1547 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1548 if (!final_types[0])
1550 *final_types[0] = R_D_MODE;
1551 final_types[1] = final_type;
1552 final_types[2] = NULL;
1553 *final_type = base_type;
1558 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1559 if (!final_types[0])
1561 *final_types[0] = R_R_MODE;
1562 final_types[1] = final_type;
1563 final_types[2] = NULL;
1564 *final_type = base_type;
1568 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1569 if (!final_types[0])
1571 *final_types[0] = R_N1SEL;
1572 final_types[1] = final_type;
1573 final_types[2] = NULL;
1574 *final_type = base_type;
1579 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1580 if (!final_types[0])
1582 *final_types[0] = R_N0SEL;
1583 final_types[1] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1584 if (!final_types[1])
1586 if (field == e_nlsel)
1587 *final_types[1] = R_N_MODE;
1589 *final_types[1] = R_R_MODE;
1590 final_types[2] = final_type;
1591 final_types[3] = NULL;
1592 *final_type = base_type;
1599 /* The difference of two symbols needs *very* special handling. */
1602 bfd_size_type amt = sizeof (int);
1603 final_types[0] = (int *) bfd_alloc (abfd, amt);
1604 final_types[1] = (int *) bfd_alloc (abfd, amt);
1605 final_types[2] = (int *) bfd_alloc (abfd, amt);
1606 final_types[3] = (int *) bfd_alloc (abfd, amt);
1607 if (!final_types[0] || !final_types[1] || !final_types[2])
1609 if (field == e_fsel)
1610 *final_types[0] = R_FSEL;
1611 else if (field == e_rsel)
1612 *final_types[0] = R_RSEL;
1613 else if (field == e_lsel)
1614 *final_types[0] = R_LSEL;
1615 *final_types[1] = R_COMP2;
1616 *final_types[2] = R_COMP2;
1617 *final_types[3] = R_COMP1;
1618 final_types[4] = final_type;
1620 *final_types[4] = R_DATA_EXPR;
1622 *final_types[4] = R_CODE_EXPR;
1623 final_types[5] = NULL;
1626 /* PLABELs get their own relocation type. */
1627 else if (field == e_psel
1629 || field == e_rpsel)
1631 /* A PLABEL relocation that has a size of 32 bits must
1632 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1634 *final_type = R_DATA_PLABEL;
1636 *final_type = R_CODE_PLABEL;
1639 else if (field == e_tsel
1641 || field == e_rtsel)
1642 *final_type = R_DLT_REL;
1643 /* A relocation in the data space is always a full 32bits. */
1644 else if (format == 32)
1646 *final_type = R_DATA_ONE_SYMBOL;
1648 /* If there's no SOM symbol type associated with this BFD
1649 symbol, then set the symbol type to ST_DATA.
1651 Only do this if the type is going to default later when
1652 we write the object file.
1654 This is done so that the linker never encounters an
1655 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1657 This allows the compiler to generate exception handling
1660 Note that one day we may need to also emit BEGIN_BRTAB and
1661 END_BRTAB to prevent the linker from optimizing away insns
1662 in exception handling regions. */
1663 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1664 && (sym->flags & BSF_SECTION_SYM) == 0
1665 && (sym->flags & BSF_FUNCTION) == 0
1666 && ! bfd_is_com_section (sym->section))
1667 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1672 /* More PLABEL special cases. */
1675 || field == e_rpsel)
1676 *final_type = R_DATA_PLABEL;
1679 case R_HPPA_COMPLEX:
1680 /* The difference of two symbols needs *very* special handling. */
1683 bfd_size_type amt = sizeof (int);
1684 final_types[0] = (int *) bfd_alloc (abfd, amt);
1685 final_types[1] = (int *) bfd_alloc (abfd, amt);
1686 final_types[2] = (int *) bfd_alloc (abfd, amt);
1687 final_types[3] = (int *) bfd_alloc (abfd, amt);
1688 if (!final_types[0] || !final_types[1] || !final_types[2])
1690 if (field == e_fsel)
1691 *final_types[0] = R_FSEL;
1692 else if (field == e_rsel)
1693 *final_types[0] = R_RSEL;
1694 else if (field == e_lsel)
1695 *final_types[0] = R_LSEL;
1696 *final_types[1] = R_COMP2;
1697 *final_types[2] = R_COMP2;
1698 *final_types[3] = R_COMP1;
1699 final_types[4] = final_type;
1701 *final_types[4] = R_DATA_EXPR;
1703 *final_types[4] = R_CODE_EXPR;
1704 final_types[5] = NULL;
1711 case R_HPPA_ABS_CALL:
1712 /* Right now we can default all these. */
1715 case R_HPPA_PCREL_CALL:
1717 #ifndef NO_PCREL_MODES
1718 /* If we have short and long pcrel modes, then generate the proper
1719 mode selector, then the pcrel relocation. Redundant selectors
1720 will be eliminted as the relocs are sized and emitted. */
1721 bfd_size_type amt = sizeof (int);
1722 final_types[0] = (int *) bfd_alloc (abfd, amt);
1723 if (!final_types[0])
1726 *final_types[0] = R_SHORT_PCREL_MODE;
1728 *final_types[0] = R_LONG_PCREL_MODE;
1729 final_types[1] = final_type;
1730 final_types[2] = NULL;
1731 *final_type = base_type;
1739 /* Return the address of the correct entry in the PA SOM relocation
1742 static reloc_howto_type *
1743 som_bfd_reloc_type_lookup (abfd, code)
1744 bfd *abfd ATTRIBUTE_UNUSED;
1745 bfd_reloc_code_real_type code;
1747 if ((int) code < (int) R_NO_RELOCATION + 255)
1749 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1750 return &som_hppa_howto_table[(int) code];
1753 return (reloc_howto_type *) 0;
1756 /* Perform some initialization for an object. Save results of this
1757 initialization in the BFD. */
1759 static const bfd_target *
1760 som_object_setup (abfd, file_hdrp, aux_hdrp, current_offset)
1762 struct header *file_hdrp;
1763 struct som_exec_auxhdr *aux_hdrp;
1764 unsigned long current_offset;
1769 /* som_mkobject will set bfd_error if som_mkobject fails. */
1770 if (! som_mkobject (abfd))
1773 /* Set BFD flags based on what information is available in the SOM. */
1774 abfd->flags = BFD_NO_FLAGS;
1775 if (file_hdrp->symbol_total)
1776 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1778 switch (file_hdrp->a_magic)
1781 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1784 abfd->flags |= (WP_TEXT | EXEC_P);
1787 abfd->flags |= (EXEC_P);
1790 abfd->flags |= HAS_RELOC;
1798 abfd->flags |= DYNAMIC;
1805 /* Allocate space to hold the saved exec header information. */
1806 obj_som_exec_data (abfd) = (struct som_exec_data *)
1807 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1808 if (obj_som_exec_data (abfd) == NULL)
1811 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
1813 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
1814 apparently the latest HPUX linker is using NEW_VERSION_ID now.
1816 It's about time, OSF has used the new id since at least 1992;
1817 HPUX didn't start till nearly 1995!.
1819 The new approach examines the entry field. If it's zero or not 4
1820 byte aligned then it's not a proper code address and we guess it's
1821 really the executable flags. */
1823 for (section = abfd->sections; section; section = section->next)
1825 if ((section->flags & SEC_CODE) == 0)
1827 if (aux_hdrp->exec_entry >= section->vma
1828 && aux_hdrp->exec_entry < section->vma + section->_cooked_size)
1831 if (aux_hdrp->exec_entry == 0
1832 || (aux_hdrp->exec_entry & 0x3) != 0
1835 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
1836 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
1840 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
1841 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
1844 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
1846 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
1847 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
1849 /* Initialize the saved symbol table and string table to NULL.
1850 Save important offsets and sizes from the SOM header into
1852 obj_som_stringtab (abfd) = (char *) NULL;
1853 obj_som_symtab (abfd) = (som_symbol_type *) NULL;
1854 obj_som_sorted_syms (abfd) = NULL;
1855 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
1856 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
1857 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
1859 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
1861 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
1866 /* Convert all of the space and subspace info into BFD sections. Each space
1867 contains a number of subspaces, which in turn describe the mapping between
1868 regions of the exec file, and the address space that the program runs in.
1869 BFD sections which correspond to spaces will overlap the sections for the
1870 associated subspaces. */
1873 setup_sections (abfd, file_hdr, current_offset)
1875 struct header *file_hdr;
1876 unsigned long current_offset;
1878 char *space_strings;
1879 unsigned int space_index, i;
1880 unsigned int total_subspaces = 0;
1881 asection **subspace_sections = NULL;
1885 /* First, read in space names. */
1887 amt = file_hdr->space_strings_size;
1888 space_strings = bfd_malloc (amt);
1889 if (!space_strings && amt != 0)
1892 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1895 if (bfd_bread (space_strings, amt, abfd) != amt)
1898 /* Loop over all of the space dictionaries, building up sections. */
1899 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1901 struct space_dictionary_record space;
1902 struct subspace_dictionary_record subspace, save_subspace;
1904 asection *space_asect;
1907 /* Read the space dictionary element. */
1909 (current_offset + file_hdr->space_location
1910 + space_index * sizeof space),
1914 if (bfd_bread (&space, amt, abfd) != amt)
1917 /* Setup the space name string. */
1918 space.name.n_name = space.name.n_strx + space_strings;
1920 /* Make a section out of it. */
1921 amt = strlen (space.name.n_name) + 1;
1922 newname = bfd_alloc (abfd, amt);
1925 strcpy (newname, space.name.n_name);
1927 space_asect = bfd_make_section_anyway (abfd, newname);
1931 if (space.is_loadable == 0)
1932 space_asect->flags |= SEC_DEBUGGING;
1934 /* Set up all the attributes for the space. */
1935 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
1936 space.is_private, space.sort_key,
1937 space.space_number))
1940 /* If the space has no subspaces, then we're done. */
1941 if (space.subspace_quantity == 0)
1944 /* Now, read in the first subspace for this space. */
1946 (current_offset + file_hdr->subspace_location
1947 + space.subspace_index * sizeof subspace),
1950 amt = sizeof subspace;
1951 if (bfd_bread (&subspace, amt, abfd) != amt)
1953 /* Seek back to the start of the subspaces for loop below. */
1955 (current_offset + file_hdr->subspace_location
1956 + space.subspace_index * sizeof subspace),
1960 /* Setup the start address and file loc from the first subspace
1962 space_asect->vma = subspace.subspace_start;
1963 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1964 space_asect->alignment_power = log2 (subspace.alignment);
1965 if (space_asect->alignment_power == (unsigned) -1)
1968 /* Initialize save_subspace so we can reliably determine if this
1969 loop placed any useful values into it. */
1970 memset (&save_subspace, 0, sizeof (struct subspace_dictionary_record));
1972 /* Loop over the rest of the subspaces, building up more sections. */
1973 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1976 asection *subspace_asect;
1978 /* Read in the next subspace. */
1979 amt = sizeof subspace;
1980 if (bfd_bread (&subspace, amt, abfd) != amt)
1983 /* Setup the subspace name string. */
1984 subspace.name.n_name = subspace.name.n_strx + space_strings;
1986 amt = strlen (subspace.name.n_name) + 1;
1987 newname = bfd_alloc (abfd, amt);
1990 strcpy (newname, subspace.name.n_name);
1992 /* Make a section out of this subspace. */
1993 subspace_asect = bfd_make_section_anyway (abfd, newname);
1994 if (!subspace_asect)
1997 /* Store private information about the section. */
1998 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
1999 subspace.access_control_bits,
2004 /* Keep an easy mapping between subspaces and sections.
2005 Note we do not necessarily read the subspaces in the
2006 same order in which they appear in the object file.
2008 So to make the target index come out correctly, we
2009 store the location of the subspace header in target
2010 index, then sort using the location of the subspace
2011 header as the key. Then we can assign correct
2012 subspace indices. */
2014 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2016 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2017 by the access_control_bits in the subspace header. */
2018 switch (subspace.access_control_bits >> 4)
2020 /* Readonly data. */
2022 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2027 subspace_asect->flags |= SEC_DATA;
2030 /* Readonly code and the gateways.
2031 Gateways have other attributes which do not map
2032 into anything BFD knows about. */
2038 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2041 /* dynamic (writable) code. */
2043 subspace_asect->flags |= SEC_CODE;
2047 if (subspace.dup_common || subspace.is_common)
2048 subspace_asect->flags |= SEC_IS_COMMON;
2049 else if (subspace.subspace_length > 0)
2050 subspace_asect->flags |= SEC_HAS_CONTENTS;
2052 if (subspace.is_loadable)
2053 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2055 subspace_asect->flags |= SEC_DEBUGGING;
2057 if (subspace.code_only)
2058 subspace_asect->flags |= SEC_CODE;
2060 /* Both file_loc_init_value and initialization_length will
2061 be zero for a BSS like subspace. */
2062 if (subspace.file_loc_init_value == 0
2063 && subspace.initialization_length == 0)
2064 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2066 /* This subspace has relocations.
2067 The fixup_request_quantity is a byte count for the number of
2068 entries in the relocation stream; it is not the actual number
2069 of relocations in the subspace. */
2070 if (subspace.fixup_request_quantity != 0)
2072 subspace_asect->flags |= SEC_RELOC;
2073 subspace_asect->rel_filepos = subspace.fixup_request_index;
2074 som_section_data (subspace_asect)->reloc_size
2075 = subspace.fixup_request_quantity;
2076 /* We can not determine this yet. When we read in the
2077 relocation table the correct value will be filled in. */
2078 subspace_asect->reloc_count = (unsigned) -1;
2081 /* Update save_subspace if appropriate. */
2082 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2083 save_subspace = subspace;
2085 subspace_asect->vma = subspace.subspace_start;
2086 subspace_asect->_cooked_size = subspace.subspace_length;
2087 subspace_asect->_raw_size = subspace.subspace_length;
2088 subspace_asect->filepos = (subspace.file_loc_init_value
2090 subspace_asect->alignment_power = log2 (subspace.alignment);
2091 if (subspace_asect->alignment_power == (unsigned) -1)
2095 /* This can happen for a .o which defines symbols in otherwise
2097 if (!save_subspace.file_loc_init_value)
2099 space_asect->_cooked_size = 0;
2100 space_asect->_raw_size = 0;
2104 /* Setup the sizes for the space section based upon the info in the
2105 last subspace of the space. */
2106 space_asect->_cooked_size = (save_subspace.subspace_start
2108 + save_subspace.subspace_length);
2109 space_asect->_raw_size = (save_subspace.file_loc_init_value
2110 - space_asect->filepos
2111 + save_subspace.initialization_length);
2114 /* Now that we've read in all the subspace records, we need to assign
2115 a target index to each subspace. */
2116 amt = total_subspaces;
2117 amt *= sizeof (asection *);
2118 subspace_sections = (asection **) bfd_malloc (amt);
2119 if (subspace_sections == NULL)
2122 for (i = 0, section = abfd->sections; section; section = section->next)
2124 if (!som_is_subspace (section))
2127 subspace_sections[i] = section;
2130 qsort (subspace_sections, total_subspaces,
2131 sizeof (asection *), compare_subspaces);
2133 /* subspace_sections is now sorted in the order in which the subspaces
2134 appear in the object file. Assign an index to each one now. */
2135 for (i = 0; i < total_subspaces; i++)
2136 subspace_sections[i]->target_index = i;
2138 if (space_strings != NULL)
2139 free (space_strings);
2141 if (subspace_sections != NULL)
2142 free (subspace_sections);
2147 if (space_strings != NULL)
2148 free (space_strings);
2150 if (subspace_sections != NULL)
2151 free (subspace_sections);
2155 /* Read in a SOM object and make it into a BFD. */
2157 static const bfd_target *
2161 struct header file_hdr;
2162 struct som_exec_auxhdr aux_hdr;
2163 unsigned long current_offset = 0;
2164 struct lst_header lst_header;
2165 struct som_entry som_entry;
2167 #define ENTRY_SIZE sizeof (struct som_entry)
2169 amt = FILE_HDR_SIZE;
2170 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2172 if (bfd_get_error () != bfd_error_system_call)
2173 bfd_set_error (bfd_error_wrong_format);
2177 if (!_PA_RISC_ID (file_hdr.system_id))
2179 bfd_set_error (bfd_error_wrong_format);
2183 switch (file_hdr.a_magic)
2195 #ifdef SHARED_MAGIC_CNX
2196 case SHARED_MAGIC_CNX:
2202 /* Read the lst header and determine where the SOM directory begins. */
2204 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2206 if (bfd_get_error () != bfd_error_system_call)
2207 bfd_set_error (bfd_error_wrong_format);
2212 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
2214 if (bfd_get_error () != bfd_error_system_call)
2215 bfd_set_error (bfd_error_wrong_format);
2219 /* Position to and read the first directory entry. */
2221 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2223 if (bfd_get_error () != bfd_error_system_call)
2224 bfd_set_error (bfd_error_wrong_format);
2229 if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt)
2231 if (bfd_get_error () != bfd_error_system_call)
2232 bfd_set_error (bfd_error_wrong_format);
2236 /* Now position to the first SOM. */
2238 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2240 if (bfd_get_error () != bfd_error_system_call)
2241 bfd_set_error (bfd_error_wrong_format);
2245 current_offset = som_entry.location;
2247 /* And finally, re-read the som header. */
2248 amt = FILE_HDR_SIZE;
2249 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2251 if (bfd_get_error () != bfd_error_system_call)
2252 bfd_set_error (bfd_error_wrong_format);
2260 bfd_set_error (bfd_error_wrong_format);
2264 if (file_hdr.version_id != VERSION_ID
2265 && file_hdr.version_id != NEW_VERSION_ID)
2267 bfd_set_error (bfd_error_wrong_format);
2271 /* If the aux_header_size field in the file header is zero, then this
2272 object is an incomplete executable (a .o file). Do not try to read
2273 a non-existant auxiliary header. */
2274 memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr));
2275 if (file_hdr.aux_header_size != 0)
2278 if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt)
2280 if (bfd_get_error () != bfd_error_system_call)
2281 bfd_set_error (bfd_error_wrong_format);
2286 if (!setup_sections (abfd, &file_hdr, current_offset))
2288 /* setup_sections does not bubble up a bfd error code. */
2289 bfd_set_error (bfd_error_bad_value);
2293 /* This appears to be a valid SOM object. Do some initialization. */
2294 return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset);
2297 /* Create a SOM object. */
2303 /* Allocate memory to hold backend information. */
2304 abfd->tdata.som_data = (struct som_data_struct *)
2305 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2306 if (abfd->tdata.som_data == NULL)
2311 /* Initialize some information in the file header. This routine makes
2312 not attempt at doing the right thing for a full executable; it
2313 is only meant to handle relocatable objects. */
2316 som_prep_headers (abfd)
2319 struct header *file_hdr;
2321 bfd_size_type amt = sizeof (struct header);
2323 /* Make and attach a file header to the BFD. */
2324 file_hdr = (struct header *) bfd_zalloc (abfd, amt);
2325 if (file_hdr == NULL)
2327 obj_som_file_hdr (abfd) = file_hdr;
2329 if (abfd->flags & (EXEC_P | DYNAMIC))
2332 /* Make and attach an exec header to the BFD. */
2333 amt = sizeof (struct som_exec_auxhdr);
2334 obj_som_exec_hdr (abfd) =
2335 (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt);
2336 if (obj_som_exec_hdr (abfd) == NULL)
2339 if (abfd->flags & D_PAGED)
2340 file_hdr->a_magic = DEMAND_MAGIC;
2341 else if (abfd->flags & WP_TEXT)
2342 file_hdr->a_magic = SHARE_MAGIC;
2344 else if (abfd->flags & DYNAMIC)
2345 file_hdr->a_magic = SHL_MAGIC;
2348 file_hdr->a_magic = EXEC_MAGIC;
2351 file_hdr->a_magic = RELOC_MAGIC;
2353 /* These fields are optional, and embedding timestamps is not always
2354 a wise thing to do, it makes comparing objects during a multi-stage
2355 bootstrap difficult. */
2356 file_hdr->file_time.secs = 0;
2357 file_hdr->file_time.nanosecs = 0;
2359 file_hdr->entry_space = 0;
2360 file_hdr->entry_subspace = 0;
2361 file_hdr->entry_offset = 0;
2362 file_hdr->presumed_dp = 0;
2364 /* Now iterate over the sections translating information from
2365 BFD sections to SOM spaces/subspaces. */
2367 for (section = abfd->sections; section != NULL; section = section->next)
2369 /* Ignore anything which has not been marked as a space or
2371 if (!som_is_space (section) && !som_is_subspace (section))
2374 if (som_is_space (section))
2376 /* Allocate space for the space dictionary. */
2377 amt = sizeof (struct space_dictionary_record);
2378 som_section_data (section)->space_dict =
2379 (struct space_dictionary_record *) bfd_zalloc (abfd, amt);
2380 if (som_section_data (section)->space_dict == NULL)
2382 /* Set space attributes. Note most attributes of SOM spaces
2383 are set based on the subspaces it contains. */
2384 som_section_data (section)->space_dict->loader_fix_index = -1;
2385 som_section_data (section)->space_dict->init_pointer_index = -1;
2387 /* Set more attributes that were stuffed away in private data. */
2388 som_section_data (section)->space_dict->sort_key =
2389 som_section_data (section)->copy_data->sort_key;
2390 som_section_data (section)->space_dict->is_defined =
2391 som_section_data (section)->copy_data->is_defined;
2392 som_section_data (section)->space_dict->is_private =
2393 som_section_data (section)->copy_data->is_private;
2394 som_section_data (section)->space_dict->space_number =
2395 som_section_data (section)->copy_data->space_number;
2399 /* Allocate space for the subspace dictionary. */
2400 amt = sizeof (struct subspace_dictionary_record);
2401 som_section_data (section)->subspace_dict =
2402 (struct subspace_dictionary_record *) bfd_zalloc (abfd, amt);
2403 if (som_section_data (section)->subspace_dict == NULL)
2406 /* Set subspace attributes. Basic stuff is done here, additional
2407 attributes are filled in later as more information becomes
2409 if (section->flags & SEC_IS_COMMON)
2411 som_section_data (section)->subspace_dict->dup_common = 1;
2412 som_section_data (section)->subspace_dict->is_common = 1;
2415 if (section->flags & SEC_ALLOC)
2416 som_section_data (section)->subspace_dict->is_loadable = 1;
2418 if (section->flags & SEC_CODE)
2419 som_section_data (section)->subspace_dict->code_only = 1;
2421 som_section_data (section)->subspace_dict->subspace_start =
2423 som_section_data (section)->subspace_dict->subspace_length =
2424 bfd_section_size (abfd, section);
2425 som_section_data (section)->subspace_dict->initialization_length =
2426 bfd_section_size (abfd, section);
2427 som_section_data (section)->subspace_dict->alignment =
2428 1 << section->alignment_power;
2430 /* Set more attributes that were stuffed away in private data. */
2431 som_section_data (section)->subspace_dict->sort_key =
2432 som_section_data (section)->copy_data->sort_key;
2433 som_section_data (section)->subspace_dict->access_control_bits =
2434 som_section_data (section)->copy_data->access_control_bits;
2435 som_section_data (section)->subspace_dict->quadrant =
2436 som_section_data (section)->copy_data->quadrant;
2442 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2445 som_is_space (section)
2448 /* If no copy data is available, then it's neither a space nor a
2450 if (som_section_data (section)->copy_data == NULL)
2453 /* If the containing space isn't the same as the given section,
2454 then this isn't a space. */
2455 if (som_section_data (section)->copy_data->container != section
2456 && (som_section_data (section)->copy_data->container->output_section
2460 /* OK. Must be a space. */
2464 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2467 som_is_subspace (section)
2470 /* If no copy data is available, then it's neither a space nor a
2472 if (som_section_data (section)->copy_data == NULL)
2475 /* If the containing space is the same as the given section,
2476 then this isn't a subspace. */
2477 if (som_section_data (section)->copy_data->container == section
2478 || (som_section_data (section)->copy_data->container->output_section
2482 /* OK. Must be a subspace. */
2486 /* Return TRUE if the given space containins the given subspace. It
2487 is safe to assume space really is a space, and subspace really
2491 som_is_container (space, subspace)
2492 asection *space, *subspace;
2494 return (som_section_data (subspace)->copy_data->container == space
2495 || (som_section_data (subspace)->copy_data->container->output_section
2499 /* Count and return the number of spaces attached to the given BFD. */
2501 static unsigned long
2502 som_count_spaces (abfd)
2508 for (section = abfd->sections; section != NULL; section = section->next)
2509 count += som_is_space (section);
2514 /* Count the number of subspaces attached to the given BFD. */
2516 static unsigned long
2517 som_count_subspaces (abfd)
2523 for (section = abfd->sections; section != NULL; section = section->next)
2524 count += som_is_subspace (section);
2529 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2531 We desire symbols to be ordered starting with the symbol with the
2532 highest relocation count down to the symbol with the lowest relocation
2533 count. Doing so compacts the relocation stream. */
2536 compare_syms (arg1, arg2)
2541 asymbol **sym1 = (asymbol **) arg1;
2542 asymbol **sym2 = (asymbol **) arg2;
2543 unsigned int count1, count2;
2545 /* Get relocation count for each symbol. Note that the count
2546 is stored in the udata pointer for section symbols! */
2547 if ((*sym1)->flags & BSF_SECTION_SYM)
2548 count1 = (*sym1)->udata.i;
2550 count1 = som_symbol_data (*sym1)->reloc_count;
2552 if ((*sym2)->flags & BSF_SECTION_SYM)
2553 count2 = (*sym2)->udata.i;
2555 count2 = som_symbol_data (*sym2)->reloc_count;
2557 /* Return the appropriate value. */
2558 if (count1 < count2)
2560 else if (count1 > count2)
2565 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2569 compare_subspaces (arg1, arg2)
2574 asection **subspace1 = (asection **) arg1;
2575 asection **subspace2 = (asection **) arg2;
2577 if ((*subspace1)->target_index < (*subspace2)->target_index)
2579 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2585 /* Perform various work in preparation for emitting the fixup stream. */
2588 som_prep_for_fixups (abfd, syms, num_syms)
2591 unsigned long num_syms;
2595 asymbol **sorted_syms;
2598 /* Most SOM relocations involving a symbol have a length which is
2599 dependent on the index of the symbol. So symbols which are
2600 used often in relocations should have a small index. */
2602 /* First initialize the counters for each symbol. */
2603 for (i = 0; i < num_syms; i++)
2605 /* Handle a section symbol; these have no pointers back to the
2606 SOM symbol info. So we just use the udata field to hold the
2607 relocation count. */
2608 if (som_symbol_data (syms[i]) == NULL
2609 || syms[i]->flags & BSF_SECTION_SYM)
2611 syms[i]->flags |= BSF_SECTION_SYM;
2612 syms[i]->udata.i = 0;
2615 som_symbol_data (syms[i])->reloc_count = 0;
2618 /* Now that the counters are initialized, make a weighted count
2619 of how often a given symbol is used in a relocation. */
2620 for (section = abfd->sections; section != NULL; section = section->next)
2624 /* Does this section have any relocations? */
2625 if ((int) section->reloc_count <= 0)
2628 /* Walk through each relocation for this section. */
2629 for (j = 1; j < (int) section->reloc_count; j++)
2631 arelent *reloc = section->orelocation[j];
2634 /* A relocation against a symbol in the *ABS* section really
2635 does not have a symbol. Likewise if the symbol isn't associated
2636 with any section. */
2637 if (reloc->sym_ptr_ptr == NULL
2638 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2641 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2642 and R_CODE_ONE_SYMBOL relocations to come first. These
2643 two relocations have single byte versions if the symbol
2644 index is very small. */
2645 if (reloc->howto->type == R_DP_RELATIVE
2646 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2651 /* Handle section symbols by storing the count in the udata
2652 field. It will not be used and the count is very important
2653 for these symbols. */
2654 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2656 (*reloc->sym_ptr_ptr)->udata.i =
2657 (*reloc->sym_ptr_ptr)->udata.i + scale;
2661 /* A normal symbol. Increment the count. */
2662 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2666 /* Sort a copy of the symbol table, rather than the canonical
2667 output symbol table. */
2669 amt *= sizeof (asymbol *);
2670 sorted_syms = (asymbol **) bfd_zalloc (abfd, amt);
2671 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2672 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2673 obj_som_sorted_syms (abfd) = sorted_syms;
2675 /* Compute the symbol indexes, they will be needed by the relocation
2677 for (i = 0; i < num_syms; i++)
2679 /* A section symbol. Again, there is no pointer to backend symbol
2680 information, so we reuse the udata field again. */
2681 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2682 sorted_syms[i]->udata.i = i;
2684 som_symbol_data (sorted_syms[i])->index = i;
2689 som_write_fixups (abfd, current_offset, total_reloc_sizep)
2691 unsigned long current_offset;
2692 unsigned int *total_reloc_sizep;
2695 /* Chunk of memory that we can use as buffer space, then throw
2697 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2699 unsigned int total_reloc_size = 0;
2700 unsigned int subspace_reloc_size = 0;
2701 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2702 asection *section = abfd->sections;
2705 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2708 /* All the fixups for a particular subspace are emitted in a single
2709 stream. All the subspaces for a particular space are emitted
2712 So, to get all the locations correct one must iterate through all the
2713 spaces, for each space iterate through its subspaces and output a
2715 for (i = 0; i < num_spaces; i++)
2717 asection *subsection;
2720 while (!som_is_space (section))
2721 section = section->next;
2723 /* Now iterate through each of its subspaces. */
2724 for (subsection = abfd->sections;
2726 subsection = subsection->next)
2729 unsigned int current_rounding_mode;
2730 #ifndef NO_PCREL_MODES
2731 int current_call_mode;
2734 /* Find a subspace of this space. */
2735 if (!som_is_subspace (subsection)
2736 || !som_is_container (section, subsection))
2739 /* If this subspace does not have real data, then we are
2741 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2743 som_section_data (subsection)->subspace_dict->fixup_request_index
2748 /* This subspace has some relocations. Put the relocation stream
2749 index into the subspace record. */
2750 som_section_data (subsection)->subspace_dict->fixup_request_index
2753 /* To make life easier start over with a clean slate for
2754 each subspace. Seek to the start of the relocation stream
2755 for this subspace in preparation for writing out its fixup
2757 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2760 /* Buffer space has already been allocated. Just perform some
2761 initialization here. */
2763 subspace_reloc_size = 0;
2765 som_initialize_reloc_queue (reloc_queue);
2766 current_rounding_mode = R_N_MODE;
2767 #ifndef NO_PCREL_MODES
2768 current_call_mode = R_SHORT_PCREL_MODE;
2771 /* Translate each BFD relocation into one or more SOM
2773 for (j = 0; j < subsection->reloc_count; j++)
2775 arelent *bfd_reloc = subsection->orelocation[j];
2779 /* Get the symbol number. Remember it's stored in a
2780 special place for section symbols. */
2781 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2782 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2784 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2786 /* If there is not enough room for the next couple relocations,
2787 then dump the current buffer contents now. Also reinitialize
2788 the relocation queue.
2790 No single BFD relocation could ever translate into more
2791 than 100 bytes of SOM relocations (20bytes is probably the
2792 upper limit, but leave lots of space for growth). */
2793 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2795 amt = p - tmp_space;
2796 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
2800 som_initialize_reloc_queue (reloc_queue);
2803 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2805 skip = bfd_reloc->address - reloc_offset;
2806 p = som_reloc_skip (abfd, skip, p,
2807 &subspace_reloc_size, reloc_queue);
2809 /* Update reloc_offset for the next iteration.
2811 Many relocations do not consume input bytes. They
2812 are markers, or set state necessary to perform some
2813 later relocation. */
2814 switch (bfd_reloc->howto->type)
2834 #ifndef NO_PCREL_MODES
2835 case R_SHORT_PCREL_MODE:
2836 case R_LONG_PCREL_MODE:
2838 reloc_offset = bfd_reloc->address;
2842 reloc_offset = bfd_reloc->address + 4;
2846 /* Now the actual relocation we care about. */
2847 switch (bfd_reloc->howto->type)
2851 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2852 bfd_reloc, sym_num, reloc_queue);
2855 case R_CODE_ONE_SYMBOL:
2857 /* Account for any addend. */
2858 if (bfd_reloc->addend)
2859 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2860 &subspace_reloc_size, reloc_queue);
2864 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2865 subspace_reloc_size += 1;
2868 else if (sym_num < 0x100)
2870 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2871 bfd_put_8 (abfd, sym_num, p + 1);
2872 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2875 else if (sym_num < 0x10000000)
2877 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2878 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2879 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2880 p = try_prev_fixup (abfd, &subspace_reloc_size,
2887 case R_DATA_ONE_SYMBOL:
2891 /* Account for any addend using R_DATA_OVERRIDE. */
2892 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2893 && bfd_reloc->addend)
2894 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2895 &subspace_reloc_size, reloc_queue);
2897 if (sym_num < 0x100)
2899 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2900 bfd_put_8 (abfd, sym_num, p + 1);
2901 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2904 else if (sym_num < 0x10000000)
2906 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2907 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2908 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2909 p = try_prev_fixup (abfd, &subspace_reloc_size,
2919 arelent *tmp_reloc = NULL;
2920 bfd_put_8 (abfd, R_ENTRY, p);
2922 /* R_ENTRY relocations have 64 bits of associated
2923 data. Unfortunately the addend field of a bfd
2924 relocation is only 32 bits. So, we split up
2925 the 64bit unwind information and store part in
2926 the R_ENTRY relocation, and the rest in the R_EXIT
2928 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2930 /* Find the next R_EXIT relocation. */
2931 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2933 tmp_reloc = subsection->orelocation[tmp];
2934 if (tmp_reloc->howto->type == R_EXIT)
2938 if (tmp == subsection->reloc_count)
2941 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2942 p = try_prev_fixup (abfd, &subspace_reloc_size,
2951 /* If this relocation requests the current rounding
2952 mode, then it is redundant. */
2953 if (bfd_reloc->howto->type != current_rounding_mode)
2955 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2956 subspace_reloc_size += 1;
2958 current_rounding_mode = bfd_reloc->howto->type;
2962 #ifndef NO_PCREL_MODES
2963 case R_LONG_PCREL_MODE:
2964 case R_SHORT_PCREL_MODE:
2965 if (bfd_reloc->howto->type != current_call_mode)
2967 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2968 subspace_reloc_size += 1;
2970 current_call_mode = bfd_reloc->howto->type;
2985 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2986 subspace_reloc_size += 1;
2991 /* The end of an exception handling region. The reloc's
2992 addend contains the offset of the exception handling
2994 if (bfd_reloc->addend == 0)
2995 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2996 else if (bfd_reloc->addend < 1024)
2998 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2999 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3000 p = try_prev_fixup (abfd, &subspace_reloc_size,
3005 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3006 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3007 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3008 p = try_prev_fixup (abfd, &subspace_reloc_size,
3014 /* The only time we generate R_COMP1, R_COMP2 and
3015 R_CODE_EXPR relocs is for the difference of two
3016 symbols. Hence we can cheat here. */
3017 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3018 bfd_put_8 (abfd, 0x44, p + 1);
3019 p = try_prev_fixup (abfd, &subspace_reloc_size,
3024 /* The only time we generate R_COMP1, R_COMP2 and
3025 R_CODE_EXPR relocs is for the difference of two
3026 symbols. Hence we can cheat here. */
3027 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3028 bfd_put_8 (abfd, 0x80, p + 1);
3029 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3030 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3031 p = try_prev_fixup (abfd, &subspace_reloc_size,
3037 /* The only time we generate R_COMP1, R_COMP2 and
3038 R_CODE_EXPR relocs is for the difference of two
3039 symbols. Hence we can cheat here. */
3040 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3041 subspace_reloc_size += 1;
3045 /* Put a "R_RESERVED" relocation in the stream if
3046 we hit something we do not understand. The linker
3047 will complain loudly if this ever happens. */
3049 bfd_put_8 (abfd, 0xff, p);
3050 subspace_reloc_size += 1;
3056 /* Last BFD relocation for a subspace has been processed.
3057 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3058 p = som_reloc_skip (abfd, (bfd_section_size (abfd, subsection)
3060 p, &subspace_reloc_size, reloc_queue);
3062 /* Scribble out the relocations. */
3063 amt = p - tmp_space;
3064 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
3068 total_reloc_size += subspace_reloc_size;
3069 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3070 = subspace_reloc_size;
3072 section = section->next;
3074 *total_reloc_sizep = total_reloc_size;
3078 /* Write out the space/subspace string table. */
3081 som_write_space_strings (abfd, current_offset, string_sizep)
3083 unsigned long current_offset;
3084 unsigned int *string_sizep;
3086 /* Chunk of memory that we can use as buffer space, then throw
3088 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3089 unsigned char *tmp_space = alloca (tmp_space_size);
3090 unsigned char *p = tmp_space;
3091 unsigned int strings_size = 0;
3095 /* Seek to the start of the space strings in preparation for writing
3097 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3100 /* Walk through all the spaces and subspaces (order is not important)
3101 building up and writing string table entries for their names. */
3102 for (section = abfd->sections; section != NULL; section = section->next)
3106 /* Only work with space/subspaces; avoid any other sections
3107 which might have been made (.text for example). */
3108 if (!som_is_space (section) && !som_is_subspace (section))
3111 /* Get the length of the space/subspace name. */
3112 length = strlen (section->name);
3114 /* If there is not enough room for the next entry, then dump the
3115 current buffer contents now and maybe allocate a larger
3116 buffer. Each entry will take 4 bytes to hold the string
3117 length + the string itself + null terminator. */
3118 if (p - tmp_space + 5 + length > tmp_space_size)
3120 /* Flush buffer before refilling or reallocating. */
3121 amt = p - tmp_space;
3122 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3125 /* Reallocate if now empty buffer still too small. */
3126 if (5 + length > tmp_space_size)
3128 /* Ensure a minimum growth factor to avoid O(n**2) space
3129 consumption for n strings. The optimal minimum
3130 factor seems to be 2, as no other value can guarantee
3131 wasting less than 50% space. (Note that we cannot
3132 deallocate space allocated by `alloca' without
3133 returning from this function.) The same technique is
3134 used a few more times below when a buffer is
3136 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3137 tmp_space = alloca (tmp_space_size);
3140 /* Reset to beginning of the (possibly new) buffer space. */
3144 /* First element in a string table entry is the length of the
3145 string. Alignment issues are already handled. */
3146 bfd_put_32 (abfd, (bfd_vma) length, p);
3150 /* Record the index in the space/subspace records. */
3151 if (som_is_space (section))
3152 som_section_data (section)->space_dict->name.n_strx = strings_size;
3154 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3156 /* Next comes the string itself + a null terminator. */
3157 strcpy (p, section->name);
3159 strings_size += length + 1;
3161 /* Always align up to the next word boundary. */
3162 while (strings_size % 4)
3164 bfd_put_8 (abfd, 0, p);
3170 /* Done with the space/subspace strings. Write out any information
3171 contained in a partial block. */
3172 amt = p - tmp_space;
3173 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3175 *string_sizep = strings_size;
3179 /* Write out the symbol string table. */
3182 som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep,
3185 unsigned long current_offset;
3187 unsigned int num_syms;
3188 unsigned int *string_sizep;
3189 COMPUNIT *compilation_unit;
3193 /* Chunk of memory that we can use as buffer space, then throw
3195 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3196 unsigned char *tmp_space = alloca (tmp_space_size);
3197 unsigned char *p = tmp_space;
3199 unsigned int strings_size = 0;
3200 unsigned char *comp[4];
3203 /* This gets a bit gruesome because of the compilation unit. The
3204 strings within the compilation unit are part of the symbol
3205 strings, but don't have symbol_dictionary entries. So, manually
3206 write them and update the compliation unit header. On input, the
3207 compilation unit header contains local copies of the strings.
3209 if (compilation_unit)
3211 comp[0] = compilation_unit->name.n_name;
3212 comp[1] = compilation_unit->language_name.n_name;
3213 comp[2] = compilation_unit->product_id.n_name;
3214 comp[3] = compilation_unit->version_id.n_name;
3217 /* Seek to the start of the space strings in preparation for writing
3219 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3222 if (compilation_unit)
3224 for (i = 0; i < 4; i++)
3226 size_t length = strlen (comp[i]);
3228 /* If there is not enough room for the next entry, then dump
3229 the current buffer contents now and maybe allocate a
3231 if (p - tmp_space + 5 + length > tmp_space_size)
3233 /* Flush buffer before refilling or reallocating. */
3234 amt = p - tmp_space;
3235 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3238 /* Reallocate if now empty buffer still too small. */
3239 if (5 + length > tmp_space_size)
3241 /* See alloca above for discussion of new size. */
3242 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3243 tmp_space = alloca (tmp_space_size);
3246 /* Reset to beginning of the (possibly new) buffer
3251 /* First element in a string table entry is the length of
3252 the string. This must always be 4 byte aligned. This is
3253 also an appropriate time to fill in the string index
3254 field in the symbol table entry. */
3255 bfd_put_32 (abfd, (bfd_vma) length, p);
3259 /* Next comes the string itself + a null terminator. */
3260 strcpy (p, comp[i]);
3265 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3268 obj_som_compilation_unit (abfd)->language_name.n_strx =
3272 obj_som_compilation_unit (abfd)->product_id.n_strx =
3276 obj_som_compilation_unit (abfd)->version_id.n_strx =
3282 strings_size += length + 1;
3284 /* Always align up to the next word boundary. */
3285 while (strings_size % 4)
3287 bfd_put_8 (abfd, 0, p);
3294 for (i = 0; i < num_syms; i++)
3296 size_t length = strlen (syms[i]->name);
3298 /* If there is not enough room for the next entry, then dump the
3299 current buffer contents now and maybe allocate a larger buffer. */
3300 if (p - tmp_space + 5 + length > tmp_space_size)
3302 /* Flush buffer before refilling or reallocating. */
3303 amt = p - tmp_space;
3304 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3307 /* Reallocate if now empty buffer still too small. */
3308 if (5 + length > tmp_space_size)
3310 /* See alloca above for discussion of new size. */
3311 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3312 tmp_space = alloca (tmp_space_size);
3315 /* Reset to beginning of the (possibly new) buffer space. */
3319 /* First element in a string table entry is the length of the
3320 string. This must always be 4 byte aligned. This is also
3321 an appropriate time to fill in the string index field in the
3322 symbol table entry. */
3323 bfd_put_32 (abfd, (bfd_vma) length, p);
3327 /* Next comes the string itself + a null terminator. */
3328 strcpy (p, syms[i]->name);
3330 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3332 strings_size += length + 1;
3334 /* Always align up to the next word boundary. */
3335 while (strings_size % 4)
3337 bfd_put_8 (abfd, 0, p);
3343 /* Scribble out any partial block. */
3344 amt = p - tmp_space;
3345 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3348 *string_sizep = strings_size;
3352 /* Compute variable information to be placed in the SOM headers,
3353 space/subspace dictionaries, relocation streams, etc. Begin
3354 writing parts of the object file. */
3357 som_begin_writing (abfd)
3360 unsigned long current_offset = 0;
3361 int strings_size = 0;
3362 unsigned long num_spaces, num_subspaces, i;
3364 unsigned int total_subspaces = 0;
3365 struct som_exec_auxhdr *exec_header = NULL;
3367 /* The file header will always be first in an object file,
3368 everything else can be in random locations. To keep things
3369 "simple" BFD will lay out the object file in the manner suggested
3370 by the PRO ABI for PA-RISC Systems. */
3372 /* Before any output can really begin offsets for all the major
3373 portions of the object file must be computed. So, starting
3374 with the initial file header compute (and sometimes write)
3375 each portion of the object file. */
3377 /* Make room for the file header, it's contents are not complete
3378 yet, so it can not be written at this time. */
3379 current_offset += sizeof (struct header);
3381 /* Any auxiliary headers will follow the file header. Right now
3382 we support only the copyright and version headers. */
3383 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3384 obj_som_file_hdr (abfd)->aux_header_size = 0;
3385 if (abfd->flags & (EXEC_P | DYNAMIC))
3387 /* Parts of the exec header will be filled in later, so
3388 delay writing the header itself. Fill in the defaults,
3389 and write it later. */
3390 current_offset += sizeof (struct som_exec_auxhdr);
3391 obj_som_file_hdr (abfd)->aux_header_size
3392 += sizeof (struct som_exec_auxhdr);
3393 exec_header = obj_som_exec_hdr (abfd);
3394 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3395 exec_header->som_auxhdr.length = 40;
3397 if (obj_som_version_hdr (abfd) != NULL)
3401 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3404 /* Write the aux_id structure and the string length. */
3405 len = sizeof (struct aux_id) + sizeof (unsigned int);
3406 obj_som_file_hdr (abfd)->aux_header_size += len;
3407 current_offset += len;
3408 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len)
3411 /* Write the version string. */
3412 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3413 obj_som_file_hdr (abfd)->aux_header_size += len;
3414 current_offset += len;
3415 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd)
3420 if (obj_som_copyright_hdr (abfd) != NULL)
3424 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3427 /* Write the aux_id structure and the string length. */
3428 len = sizeof (struct aux_id) + sizeof (unsigned int);
3429 obj_som_file_hdr (abfd)->aux_header_size += len;
3430 current_offset += len;
3431 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len)
3434 /* Write the copyright string. */
3435 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3436 obj_som_file_hdr (abfd)->aux_header_size += len;
3437 current_offset += len;
3438 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3443 /* Next comes the initialization pointers; we have no initialization
3444 pointers, so current offset does not change. */
3445 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3446 obj_som_file_hdr (abfd)->init_array_total = 0;
3448 /* Next are the space records. These are fixed length records.
3450 Count the number of spaces to determine how much room is needed
3451 in the object file for the space records.
3453 The names of the spaces are stored in a separate string table,
3454 and the index for each space into the string table is computed
3455 below. Therefore, it is not possible to write the space headers
3457 num_spaces = som_count_spaces (abfd);
3458 obj_som_file_hdr (abfd)->space_location = current_offset;
3459 obj_som_file_hdr (abfd)->space_total = num_spaces;
3460 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3462 /* Next are the subspace records. These are fixed length records.
3464 Count the number of subspaes to determine how much room is needed
3465 in the object file for the subspace records.
3467 A variety if fields in the subspace record are still unknown at
3468 this time (index into string table, fixup stream location/size, etc). */
3469 num_subspaces = som_count_subspaces (abfd);
3470 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3471 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3472 current_offset += num_subspaces * sizeof (struct subspace_dictionary_record);
3474 /* Next is the string table for the space/subspace names. We will
3475 build and write the string table on the fly. At the same time
3476 we will fill in the space/subspace name index fields. */
3478 /* The string table needs to be aligned on a word boundary. */
3479 if (current_offset % 4)
3480 current_offset += (4 - (current_offset % 4));
3482 /* Mark the offset of the space/subspace string table in the
3484 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3486 /* Scribble out the space strings. */
3487 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3490 /* Record total string table size in the header and update the
3492 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3493 current_offset += strings_size;
3495 /* Next is the compilation unit. */
3496 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3497 obj_som_file_hdr (abfd)->compiler_total = 0;
3498 if (obj_som_compilation_unit (abfd))
3500 obj_som_file_hdr (abfd)->compiler_total = 1;
3501 current_offset += COMPUNITSZ;
3504 /* Now compute the file positions for the loadable subspaces, taking
3505 care to make sure everything stays properly aligned. */
3507 section = abfd->sections;
3508 for (i = 0; i < num_spaces; i++)
3510 asection *subsection;
3512 unsigned int subspace_offset = 0;
3515 while (!som_is_space (section))
3516 section = section->next;
3519 /* Now look for all its subspaces. */
3520 for (subsection = abfd->sections;
3522 subsection = subsection->next)
3525 if (!som_is_subspace (subsection)
3526 || !som_is_container (section, subsection)
3527 || (subsection->flags & SEC_ALLOC) == 0)
3530 /* If this is the first subspace in the space, and we are
3531 building an executable, then take care to make sure all
3532 the alignments are correct and update the exec header. */
3534 && (abfd->flags & (EXEC_P | DYNAMIC)))
3536 /* Demand paged executables have each space aligned to a
3537 page boundary. Sharable executables (write-protected
3538 text) have just the private (aka data & bss) space aligned
3539 to a page boundary. Ugh. Not true for HPUX.
3541 The HPUX kernel requires the text to always be page aligned
3542 within the file regardless of the executable's type. */
3543 if (abfd->flags & (D_PAGED | DYNAMIC)
3544 || (subsection->flags & SEC_CODE)
3545 || ((abfd->flags & WP_TEXT)
3546 && (subsection->flags & SEC_DATA)))
3547 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3549 /* Update the exec header. */
3550 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3552 exec_header->exec_tmem = section->vma;
3553 exec_header->exec_tfile = current_offset;
3555 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3557 exec_header->exec_dmem = section->vma;
3558 exec_header->exec_dfile = current_offset;
3561 /* Keep track of exactly where we are within a particular
3562 space. This is necessary as the braindamaged HPUX
3563 loader will create holes between subspaces *and*
3564 subspace alignments are *NOT* preserved. What a crock. */
3565 subspace_offset = subsection->vma;
3567 /* Only do this for the first subspace within each space. */
3570 else if (abfd->flags & (EXEC_P | DYNAMIC))
3572 /* The braindamaged HPUX loader may have created a hole
3573 between two subspaces. It is *not* sufficient to use
3574 the alignment specifications within the subspaces to
3575 account for these holes -- I've run into at least one
3576 case where the loader left one code subspace unaligned
3577 in a final executable.
3579 To combat this we keep a current offset within each space,
3580 and use the subspace vma fields to detect and preserve
3581 holes. What a crock!
3583 ps. This is not necessary for unloadable space/subspaces. */
3584 current_offset += subsection->vma - subspace_offset;
3585 if (subsection->flags & SEC_CODE)
3586 exec_header->exec_tsize += subsection->vma - subspace_offset;
3588 exec_header->exec_dsize += subsection->vma - subspace_offset;
3589 subspace_offset += subsection->vma - subspace_offset;
3592 subsection->target_index = total_subspaces++;
3593 /* This is real data to be loaded from the file. */
3594 if (subsection->flags & SEC_LOAD)
3596 /* Update the size of the code & data. */
3597 if (abfd->flags & (EXEC_P | DYNAMIC)
3598 && subsection->flags & SEC_CODE)
3599 exec_header->exec_tsize += subsection->_cooked_size;
3600 else if (abfd->flags & (EXEC_P | DYNAMIC)
3601 && subsection->flags & SEC_DATA)
3602 exec_header->exec_dsize += subsection->_cooked_size;
3603 som_section_data (subsection)->subspace_dict->file_loc_init_value
3605 subsection->filepos = current_offset;
3606 current_offset += bfd_section_size (abfd, subsection);
3607 subspace_offset += bfd_section_size (abfd, subsection);
3609 /* Looks like uninitialized data. */
3612 /* Update the size of the bss section. */
3613 if (abfd->flags & (EXEC_P | DYNAMIC))
3614 exec_header->exec_bsize += subsection->_cooked_size;
3616 som_section_data (subsection)->subspace_dict->file_loc_init_value
3618 som_section_data (subsection)->subspace_dict->
3619 initialization_length = 0;
3622 /* Goto the next section. */
3623 section = section->next;
3626 /* Finally compute the file positions for unloadable subspaces.
3627 If building an executable, start the unloadable stuff on its
3630 if (abfd->flags & (EXEC_P | DYNAMIC))
3631 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3633 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3634 section = abfd->sections;
3635 for (i = 0; i < num_spaces; i++)
3637 asection *subsection;
3640 while (!som_is_space (section))
3641 section = section->next;
3643 if (abfd->flags & (EXEC_P | DYNAMIC))
3644 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3646 /* Now look for all its subspaces. */
3647 for (subsection = abfd->sections;
3649 subsection = subsection->next)
3652 if (!som_is_subspace (subsection)
3653 || !som_is_container (section, subsection)
3654 || (subsection->flags & SEC_ALLOC) != 0)
3657 subsection->target_index = total_subspaces++;
3658 /* This is real data to be loaded from the file. */
3659 if ((subsection->flags & SEC_LOAD) == 0)
3661 som_section_data (subsection)->subspace_dict->file_loc_init_value
3663 subsection->filepos = current_offset;
3664 current_offset += bfd_section_size (abfd, subsection);
3666 /* Looks like uninitialized data. */
3669 som_section_data (subsection)->subspace_dict->file_loc_init_value
3671 som_section_data (subsection)->subspace_dict->
3672 initialization_length = bfd_section_size (abfd, subsection);
3675 /* Goto the next section. */
3676 section = section->next;
3679 /* If building an executable, then make sure to seek to and write
3680 one byte at the end of the file to make sure any necessary
3681 zeros are filled in. Ugh. */
3682 if (abfd->flags & (EXEC_P | DYNAMIC))
3683 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3684 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3686 if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1)
3689 obj_som_file_hdr (abfd)->unloadable_sp_size
3690 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3692 /* Loader fixups are not supported in any way shape or form. */
3693 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3694 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3696 /* Done. Store the total size of the SOM so far. */
3697 obj_som_file_hdr (abfd)->som_length = current_offset;
3702 /* Finally, scribble out the various headers to the disk. */
3705 som_finish_writing (abfd)
3708 int num_spaces = som_count_spaces (abfd);
3709 asymbol **syms = bfd_get_outsymbols (abfd);
3710 int i, num_syms, strings_size;
3711 int subspace_index = 0;
3714 unsigned long current_offset;
3715 unsigned int total_reloc_size;
3718 /* We must set up the version identifier here as objcopy/strip copy
3719 private BFD data too late for us to handle this in som_begin_writing. */
3720 if (obj_som_exec_data (abfd)
3721 && obj_som_exec_data (abfd)->version_id)
3722 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3724 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3726 /* Next is the symbol table. These are fixed length records.
3728 Count the number of symbols to determine how much room is needed
3729 in the object file for the symbol table.
3731 The names of the symbols are stored in a separate string table,
3732 and the index for each symbol name into the string table is computed
3733 below. Therefore, it is not possible to write the symbol table
3736 These used to be output before the subspace contents, but they
3737 were moved here to work around a stupid bug in the hpux linker
3738 (fixed in hpux10). */
3739 current_offset = obj_som_file_hdr (abfd)->som_length;
3741 /* Make sure we're on a word boundary. */
3742 if (current_offset % 4)
3743 current_offset += (4 - (current_offset % 4));
3745 num_syms = bfd_get_symcount (abfd);
3746 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3747 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3748 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3750 /* Next are the symbol strings.
3751 Align them to a word boundary. */
3752 if (current_offset % 4)
3753 current_offset += (4 - (current_offset % 4));
3754 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3756 /* Scribble out the symbol strings. */
3757 if (! som_write_symbol_strings (abfd, current_offset, syms,
3758 num_syms, &strings_size,
3759 obj_som_compilation_unit (abfd)))
3762 /* Record total string table size in header and update the
3764 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3765 current_offset += strings_size;
3767 /* Do prep work before handling fixups. */
3768 som_prep_for_fixups (abfd,
3769 bfd_get_outsymbols (abfd),
3770 bfd_get_symcount (abfd));
3772 /* At the end of the file is the fixup stream which starts on a
3774 if (current_offset % 4)
3775 current_offset += (4 - (current_offset % 4));
3776 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3778 /* Write the fixups and update fields in subspace headers which
3779 relate to the fixup stream. */
3780 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
3783 /* Record the total size of the fixup stream in the file header. */
3784 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3786 /* Done. Store the total size of the SOM. */
3787 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3789 /* Now that the symbol table information is complete, build and
3790 write the symbol table. */
3791 if (! som_build_and_write_symbol_table (abfd))
3794 /* Subspaces are written first so that we can set up information
3795 about them in their containing spaces as the subspace is written. */
3797 /* Seek to the start of the subspace dictionary records. */
3798 location = obj_som_file_hdr (abfd)->subspace_location;
3799 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3802 section = abfd->sections;
3803 /* Now for each loadable space write out records for its subspaces. */
3804 for (i = 0; i < num_spaces; i++)
3806 asection *subsection;
3809 while (!som_is_space (section))
3810 section = section->next;
3812 /* Now look for all its subspaces. */
3813 for (subsection = abfd->sections;
3815 subsection = subsection->next)
3818 /* Skip any section which does not correspond to a space
3819 or subspace. Or does not have SEC_ALLOC set (and therefore
3820 has no real bits on the disk). */
3821 if (!som_is_subspace (subsection)
3822 || !som_is_container (section, subsection)
3823 || (subsection->flags & SEC_ALLOC) == 0)
3826 /* If this is the first subspace for this space, then save
3827 the index of the subspace in its containing space. Also
3828 set "is_loadable" in the containing space. */
3830 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3832 som_section_data (section)->space_dict->is_loadable = 1;
3833 som_section_data (section)->space_dict->subspace_index
3837 /* Increment the number of subspaces seen and the number of
3838 subspaces contained within the current space. */
3840 som_section_data (section)->space_dict->subspace_quantity++;
3842 /* Mark the index of the current space within the subspace's
3843 dictionary record. */
3844 som_section_data (subsection)->subspace_dict->space_index = i;
3846 /* Dump the current subspace header. */
3847 amt = sizeof (struct subspace_dictionary_record);
3848 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3852 /* Goto the next section. */
3853 section = section->next;
3856 /* Now repeat the process for unloadable subspaces. */
3857 section = abfd->sections;
3858 /* Now for each space write out records for its subspaces. */
3859 for (i = 0; i < num_spaces; i++)
3861 asection *subsection;
3864 while (!som_is_space (section))
3865 section = section->next;
3867 /* Now look for all its subspaces. */
3868 for (subsection = abfd->sections;
3870 subsection = subsection->next)
3873 /* Skip any section which does not correspond to a space or
3874 subspace, or which SEC_ALLOC set (and therefore handled
3875 in the loadable spaces/subspaces code above). */
3877 if (!som_is_subspace (subsection)
3878 || !som_is_container (section, subsection)
3879 || (subsection->flags & SEC_ALLOC) != 0)
3882 /* If this is the first subspace for this space, then save
3883 the index of the subspace in its containing space. Clear
3886 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3888 som_section_data (section)->space_dict->is_loadable = 0;
3889 som_section_data (section)->space_dict->subspace_index
3893 /* Increment the number of subspaces seen and the number of
3894 subspaces contained within the current space. */
3895 som_section_data (section)->space_dict->subspace_quantity++;
3898 /* Mark the index of the current space within the subspace's
3899 dictionary record. */
3900 som_section_data (subsection)->subspace_dict->space_index = i;
3902 /* Dump this subspace header. */
3903 amt = sizeof (struct subspace_dictionary_record);
3904 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3908 /* Goto the next section. */
3909 section = section->next;
3912 /* All the subspace dictiondary records are written, and all the
3913 fields are set up in the space dictionary records.
3915 Seek to the right location and start writing the space
3916 dictionary records. */
3917 location = obj_som_file_hdr (abfd)->space_location;
3918 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3921 section = abfd->sections;
3922 for (i = 0; i < num_spaces; i++)
3925 while (!som_is_space (section))
3926 section = section->next;
3928 /* Dump its header. */
3929 amt = sizeof (struct space_dictionary_record);
3930 if (bfd_bwrite ((PTR) som_section_data (section)->space_dict,
3934 /* Goto the next section. */
3935 section = section->next;
3938 /* Write the compilation unit record if there is one. */
3939 if (obj_som_compilation_unit (abfd))
3941 location = obj_som_file_hdr (abfd)->compiler_location;
3942 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3946 if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3950 /* Setting of the system_id has to happen very late now that copying of
3951 BFD private data happens *after* section contents are set. */
3952 if (abfd->flags & (EXEC_P | DYNAMIC))
3953 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3954 else if (bfd_get_mach (abfd) == pa20)
3955 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3956 else if (bfd_get_mach (abfd) == pa11)
3957 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3959 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3961 /* Compute the checksum for the file header just before writing
3962 the header to disk. */
3963 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3965 /* Only thing left to do is write out the file header. It is always
3966 at location zero. Seek there and write it. */
3967 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3969 amt = sizeof (struct header);
3970 if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt)
3973 /* Now write the exec header. */
3974 if (abfd->flags & (EXEC_P | DYNAMIC))
3976 long tmp, som_length;
3977 struct som_exec_auxhdr *exec_header;
3979 exec_header = obj_som_exec_hdr (abfd);
3980 exec_header->exec_entry = bfd_get_start_address (abfd);
3981 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3983 /* Oh joys. Ram some of the BSS data into the DATA section
3984 to be compatable with how the hp linker makes objects
3985 (saves memory space). */
3986 tmp = exec_header->exec_dsize;
3987 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3988 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3989 if (exec_header->exec_bsize < 0)
3990 exec_header->exec_bsize = 0;
3991 exec_header->exec_dsize = tmp;
3993 /* Now perform some sanity checks. The idea is to catch bogons now and
3994 inform the user, instead of silently generating a bogus file. */
3995 som_length = obj_som_file_hdr (abfd)->som_length;
3996 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
3997 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
3999 bfd_set_error (bfd_error_bad_value);
4003 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4008 if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt)
4014 /* Compute and return the checksum for a SOM file header. */
4016 static unsigned long
4017 som_compute_checksum (abfd)
4020 unsigned long checksum, count, i;
4021 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
4024 count = sizeof (struct header) / sizeof (unsigned long);
4025 for (i = 0; i < count; i++)
4026 checksum ^= *(buffer + i);
4032 som_bfd_derive_misc_symbol_info (abfd, sym, info)
4033 bfd *abfd ATTRIBUTE_UNUSED;
4035 struct som_misc_symbol_info *info;
4038 memset (info, 0, sizeof (struct som_misc_symbol_info));
4040 /* The HP SOM linker requires detailed type information about
4041 all symbols (including undefined symbols!). Unfortunately,
4042 the type specified in an import/export statement does not
4043 always match what the linker wants. Severe braindamage. */
4045 /* Section symbols will not have a SOM symbol type assigned to
4046 them yet. Assign all section symbols type ST_DATA. */
4047 if (sym->flags & BSF_SECTION_SYM)
4048 info->symbol_type = ST_DATA;
4051 /* Common symbols must have scope SS_UNSAT and type
4052 ST_STORAGE or the linker will choke. */
4053 if (bfd_is_com_section (sym->section))
4055 info->symbol_scope = SS_UNSAT;
4056 info->symbol_type = ST_STORAGE;
4059 /* It is possible to have a symbol without an associated
4060 type. This happens if the user imported the symbol
4061 without a type and the symbol was never defined
4062 locally. If BSF_FUNCTION is set for this symbol, then
4063 assign it type ST_CODE (the HP linker requires undefined
4064 external functions to have type ST_CODE rather than ST_ENTRY). */
4065 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4066 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4067 && bfd_is_und_section (sym->section)
4068 && sym->flags & BSF_FUNCTION)
4069 info->symbol_type = ST_CODE;
4071 /* Handle function symbols which were defined in this file.
4072 They should have type ST_ENTRY. Also retrieve the argument
4073 relocation bits from the SOM backend information. */
4074 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4075 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4076 && (sym->flags & BSF_FUNCTION))
4077 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4078 && (sym->flags & BSF_FUNCTION)))
4080 info->symbol_type = ST_ENTRY;
4081 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4082 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4085 /* For unknown symbols set the symbol's type based on the symbol's
4086 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4087 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4089 if (sym->section->flags & SEC_CODE)
4090 info->symbol_type = ST_CODE;
4092 info->symbol_type = ST_DATA;
4095 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4096 info->symbol_type = ST_DATA;
4098 /* From now on it's a very simple mapping. */
4099 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4100 info->symbol_type = ST_ABSOLUTE;
4101 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4102 info->symbol_type = ST_CODE;
4103 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4104 info->symbol_type = ST_DATA;
4105 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4106 info->symbol_type = ST_MILLICODE;
4107 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4108 info->symbol_type = ST_PLABEL;
4109 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4110 info->symbol_type = ST_PRI_PROG;
4111 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4112 info->symbol_type = ST_SEC_PROG;
4115 /* Now handle the symbol's scope. Exported data which is not
4116 in the common section has scope SS_UNIVERSAL. Note scope
4117 of common symbols was handled earlier! */
4118 if (bfd_is_und_section (sym->section))
4119 info->symbol_scope = SS_UNSAT;
4120 else if (sym->flags & (BSF_EXPORT | BSF_WEAK)
4121 && ! bfd_is_com_section (sym->section))
4122 info->symbol_scope = SS_UNIVERSAL;
4123 /* Anything else which is not in the common section has scope
4125 else if (! bfd_is_com_section (sym->section))
4126 info->symbol_scope = SS_LOCAL;
4128 /* Now set the symbol_info field. It has no real meaning
4129 for undefined or common symbols, but the HP linker will
4130 choke if it's not set to some "reasonable" value. We
4131 use zero as a reasonable value. */
4132 if (bfd_is_com_section (sym->section)
4133 || bfd_is_und_section (sym->section)
4134 || bfd_is_abs_section (sym->section))
4135 info->symbol_info = 0;
4136 /* For all other symbols, the symbol_info field contains the
4137 subspace index of the space this symbol is contained in. */
4139 info->symbol_info = sym->section->target_index;
4141 /* Set the symbol's value. */
4142 info->symbol_value = sym->value + sym->section->vma;
4144 /* The secondary_def field is for weak symbols. */
4145 if (sym->flags & BSF_WEAK)
4146 info->secondary_def = TRUE;
4148 info->secondary_def = FALSE;
4152 /* Build and write, in one big chunk, the entire symbol table for
4156 som_build_and_write_symbol_table (abfd)
4159 unsigned int num_syms = bfd_get_symcount (abfd);
4160 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4161 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4162 struct symbol_dictionary_record *som_symtab = NULL;
4164 bfd_size_type symtab_size;
4166 /* Compute total symbol table size and allocate a chunk of memory
4167 to hold the symbol table as we build it. */
4168 symtab_size = num_syms;
4169 symtab_size *= sizeof (struct symbol_dictionary_record);
4170 som_symtab = (struct symbol_dictionary_record *) bfd_zmalloc (symtab_size);
4171 if (som_symtab == NULL && symtab_size != 0)
4174 /* Walk over each symbol. */
4175 for (i = 0; i < num_syms; i++)
4177 struct som_misc_symbol_info info;
4179 /* This is really an index into the symbol strings table.
4180 By the time we get here, the index has already been
4181 computed and stored into the name field in the BFD symbol. */
4182 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4184 /* Derive SOM information from the BFD symbol. */
4185 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4188 som_symtab[i].symbol_type = info.symbol_type;
4189 som_symtab[i].symbol_scope = info.symbol_scope;
4190 som_symtab[i].arg_reloc = info.arg_reloc;
4191 som_symtab[i].symbol_info = info.symbol_info;
4192 som_symtab[i].xleast = 3;
4193 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4194 som_symtab[i].secondary_def = info.secondary_def;
4197 /* Everything is ready, seek to the right location and
4198 scribble out the symbol table. */
4199 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4202 if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size)
4205 if (som_symtab != NULL)
4209 if (som_symtab != NULL)
4214 /* Write an object in SOM format. */
4217 som_write_object_contents (abfd)
4220 if (! abfd->output_has_begun)
4222 /* Set up fixed parts of the file, space, and subspace headers.
4223 Notify the world that output has begun. */
4224 som_prep_headers (abfd);
4225 abfd->output_has_begun = TRUE;
4226 /* Start writing the object file. This include all the string
4227 tables, fixup streams, and other portions of the object file. */
4228 som_begin_writing (abfd);
4231 return (som_finish_writing (abfd));
4234 /* Read and save the string table associated with the given BFD. */
4237 som_slurp_string_table (abfd)
4243 /* Use the saved version if its available. */
4244 if (obj_som_stringtab (abfd) != NULL)
4247 /* I don't think this can currently happen, and I'm not sure it should
4248 really be an error, but it's better than getting unpredictable results
4249 from the host's malloc when passed a size of zero. */
4250 if (obj_som_stringtab_size (abfd) == 0)
4252 bfd_set_error (bfd_error_no_symbols);
4256 /* Allocate and read in the string table. */
4257 amt = obj_som_stringtab_size (abfd);
4258 stringtab = bfd_zmalloc (amt);
4259 if (stringtab == NULL)
4262 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4265 if (bfd_bread (stringtab, amt, abfd) != amt)
4268 /* Save our results and return success. */
4269 obj_som_stringtab (abfd) = stringtab;
4273 /* Return the amount of data (in bytes) required to hold the symbol
4274 table for this object. */
4277 som_get_symtab_upper_bound (abfd)
4280 if (!som_slurp_symbol_table (abfd))
4283 return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
4286 /* Convert from a SOM subspace index to a BFD section. */
4289 bfd_section_from_som_symbol (abfd, symbol)
4291 struct symbol_dictionary_record *symbol;
4295 /* The meaning of the symbol_info field changes for functions
4296 within executables. So only use the quick symbol_info mapping for
4297 incomplete objects and non-function symbols in executables. */
4298 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4299 || (symbol->symbol_type != ST_ENTRY
4300 && symbol->symbol_type != ST_PRI_PROG
4301 && symbol->symbol_type != ST_SEC_PROG
4302 && symbol->symbol_type != ST_MILLICODE))
4304 unsigned int index = symbol->symbol_info;
4305 for (section = abfd->sections; section != NULL; section = section->next)
4306 if (section->target_index == index && som_is_subspace (section))
4309 /* Could be a symbol from an external library (such as an OMOS
4310 shared library). Don't abort. */
4311 return bfd_abs_section_ptr;
4316 unsigned int value = symbol->symbol_value;
4318 /* For executables we will have to use the symbol's address and
4319 find out what section would contain that address. Yuk. */
4320 for (section = abfd->sections; section; section = section->next)
4322 if (value >= section->vma
4323 && value <= section->vma + section->_cooked_size
4324 && som_is_subspace (section))
4328 /* Could be a symbol from an external library (such as an OMOS
4329 shared library). Don't abort. */
4330 return bfd_abs_section_ptr;
4335 /* Read and save the symbol table associated with the given BFD. */
4338 som_slurp_symbol_table (abfd)
4341 int symbol_count = bfd_get_symcount (abfd);
4342 int symsize = sizeof (struct symbol_dictionary_record);
4344 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4345 som_symbol_type *sym, *symbase;
4348 /* Return saved value if it exists. */
4349 if (obj_som_symtab (abfd) != NULL)
4350 goto successful_return;
4352 /* Special case. This is *not* an error. */
4353 if (symbol_count == 0)
4354 goto successful_return;
4356 if (!som_slurp_string_table (abfd))
4359 stringtab = obj_som_stringtab (abfd);
4362 amt *= sizeof (som_symbol_type);
4363 symbase = (som_symbol_type *) bfd_zmalloc (amt);
4364 if (symbase == NULL)
4367 /* Read in the external SOM representation. */
4370 buf = bfd_malloc (amt);
4371 if (buf == NULL && amt != 0)
4373 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4375 if (bfd_bread (buf, amt, abfd) != amt)
4378 /* Iterate over all the symbols and internalize them. */
4379 endbufp = buf + symbol_count;
4380 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4383 /* I don't think we care about these. */
4384 if (bufp->symbol_type == ST_SYM_EXT
4385 || bufp->symbol_type == ST_ARG_EXT)
4388 /* Set some private data we care about. */
4389 if (bufp->symbol_type == ST_NULL)
4390 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4391 else if (bufp->symbol_type == ST_ABSOLUTE)
4392 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4393 else if (bufp->symbol_type == ST_DATA)
4394 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4395 else if (bufp->symbol_type == ST_CODE)
4396 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4397 else if (bufp->symbol_type == ST_PRI_PROG)
4398 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4399 else if (bufp->symbol_type == ST_SEC_PROG)
4400 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4401 else if (bufp->symbol_type == ST_ENTRY)
4402 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4403 else if (bufp->symbol_type == ST_MILLICODE)
4404 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4405 else if (bufp->symbol_type == ST_PLABEL)
4406 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4408 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4409 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4411 /* Some reasonable defaults. */
4412 sym->symbol.the_bfd = abfd;
4413 sym->symbol.name = bufp->name.n_strx + stringtab;
4414 sym->symbol.value = bufp->symbol_value;
4415 sym->symbol.section = 0;
4416 sym->symbol.flags = 0;
4418 switch (bufp->symbol_type)
4422 sym->symbol.flags |= BSF_FUNCTION;
4423 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4424 sym->symbol.value & 0x3;
4425 sym->symbol.value &= ~0x3;
4432 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4433 sym->symbol.value & 0x3;
4434 sym->symbol.value &= ~0x3;
4435 /* If the symbol's scope is SS_UNSAT, then these are
4436 undefined function symbols. */
4437 if (bufp->symbol_scope == SS_UNSAT)
4438 sym->symbol.flags |= BSF_FUNCTION;
4444 /* Handle scoping and section information. */
4445 switch (bufp->symbol_scope)
4447 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4448 so the section associated with this symbol can't be known. */
4450 if (bufp->symbol_type != ST_STORAGE)
4451 sym->symbol.section = bfd_und_section_ptr;
4453 sym->symbol.section = bfd_com_section_ptr;
4454 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4458 if (bufp->symbol_type != ST_STORAGE)
4459 sym->symbol.section = bfd_und_section_ptr;
4461 sym->symbol.section = bfd_com_section_ptr;
4465 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4466 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4467 sym->symbol.value -= sym->symbol.section->vma;
4471 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
4472 Sound dumb? It is. */
4476 sym->symbol.flags |= BSF_LOCAL;
4477 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4478 sym->symbol.value -= sym->symbol.section->vma;
4482 /* Check for a weak symbol. */
4483 if (bufp->secondary_def)
4484 sym->symbol.flags |= BSF_WEAK;
4486 /* Mark section symbols and symbols used by the debugger.
4487 Note $START$ is a magic code symbol, NOT a section symbol. */
4488 if (sym->symbol.name[0] == '$'
4489 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4490 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4491 sym->symbol.flags |= BSF_SECTION_SYM;
4492 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4494 sym->symbol.flags |= BSF_SECTION_SYM;
4495 sym->symbol.name = sym->symbol.section->name;
4497 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4498 sym->symbol.flags |= BSF_DEBUGGING;
4500 /* Note increment at bottom of loop, since we skip some symbols
4501 we can not include it as part of the for statement. */
4505 /* We modify the symbol count to record the number of BFD symbols we
4507 bfd_get_symcount (abfd) = sym - symbase;
4509 /* Save our results and return success. */
4510 obj_som_symtab (abfd) = symbase;
4522 /* Canonicalize a SOM symbol table. Return the number of entries
4523 in the symbol table. */
4526 som_get_symtab (abfd, location)
4531 som_symbol_type *symbase;
4533 if (!som_slurp_symbol_table (abfd))
4536 i = bfd_get_symcount (abfd);
4537 symbase = obj_som_symtab (abfd);
4539 for (; i > 0; i--, location++, symbase++)
4540 *location = &symbase->symbol;
4542 /* Final null pointer. */
4544 return (bfd_get_symcount (abfd));
4547 /* Make a SOM symbol. There is nothing special to do here. */
4550 som_make_empty_symbol (abfd)
4553 bfd_size_type amt = sizeof (som_symbol_type);
4554 som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt);
4557 new->symbol.the_bfd = abfd;
4559 return &new->symbol;
4562 /* Print symbol information. */
4565 som_print_symbol (abfd, afile, symbol, how)
4569 bfd_print_symbol_type how;
4571 FILE *file = (FILE *) afile;
4574 case bfd_print_symbol_name:
4575 fprintf (file, "%s", symbol->name);
4577 case bfd_print_symbol_more:
4578 fprintf (file, "som ");
4579 fprintf_vma (file, symbol->value);
4580 fprintf (file, " %lx", (long) symbol->flags);
4582 case bfd_print_symbol_all:
4584 const char *section_name;
4585 section_name = symbol->section ? symbol->section->name : "(*none*)";
4586 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
4587 fprintf (file, " %s\t%s", section_name, symbol->name);
4594 som_bfd_is_local_label_name (abfd, name)
4595 bfd *abfd ATTRIBUTE_UNUSED;
4598 return (name[0] == 'L' && name[1] == '$');
4601 /* Count or process variable-length SOM fixup records.
4603 To avoid code duplication we use this code both to compute the number
4604 of relocations requested by a stream, and to internalize the stream.
4606 When computing the number of relocations requested by a stream the
4607 variables rptr, section, and symbols have no meaning.
4609 Return the number of relocations requested by the fixup stream. When
4612 This needs at least two or three more passes to get it cleaned up. */
4615 som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
4616 unsigned char *fixup;
4618 arelent *internal_relocs;
4621 bfd_boolean just_count;
4623 unsigned int op, varname, deallocate_contents = 0;
4624 unsigned char *end_fixups = &fixup[end];
4625 const struct fixup_format *fp;
4627 unsigned char *save_fixup;
4628 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4630 arelent *rptr = internal_relocs;
4631 unsigned int offset = 0;
4633 #define var(c) variables[(c) - 'A']
4634 #define push(v) (*sp++ = (v))
4635 #define pop() (*--sp)
4636 #define emptystack() (sp == stack)
4638 som_initialize_reloc_queue (reloc_queue);
4639 memset (variables, 0, sizeof (variables));
4640 memset (stack, 0, sizeof (stack));
4643 saved_unwind_bits = 0;
4646 while (fixup < end_fixups)
4649 /* Save pointer to the start of this fixup. We'll use
4650 it later to determine if it is necessary to put this fixup
4654 /* Get the fixup code and its associated format. */
4656 fp = &som_fixup_formats[op];
4658 /* Handle a request for a previous fixup. */
4659 if (*fp->format == 'P')
4661 /* Get pointer to the beginning of the prev fixup, move
4662 the repeated fixup to the head of the queue. */
4663 fixup = reloc_queue[fp->D].reloc;
4664 som_reloc_queue_fix (reloc_queue, fp->D);
4667 /* Get the fixup code and its associated format. */
4669 fp = &som_fixup_formats[op];
4672 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4674 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4675 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4677 rptr->address = offset;
4678 rptr->howto = &som_hppa_howto_table[op];
4680 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4683 /* Set default input length to 0. Get the opcode class index
4687 var ('U') = saved_unwind_bits;
4689 /* Get the opcode format. */
4692 /* Process the format string. Parsing happens in two phases,
4693 parse RHS, then assign to LHS. Repeat until no more
4694 characters in the format string. */
4697 /* The variable this pass is going to compute a value for. */
4700 /* Start processing RHS. Continue until a NULL or '=' is found. */
4705 /* If this is a variable, push it on the stack. */
4709 /* If this is a lower case letter, then it represents
4710 additional data from the fixup stream to be pushed onto
4712 else if (ISLOWER (c))
4714 int bits = (c - 'a') * 8;
4715 for (v = 0; c > 'a'; --c)
4716 v = (v << 8) | *fixup++;
4718 v = sign_extend (v, bits);
4722 /* A decimal constant. Push it on the stack. */
4723 else if (ISDIGIT (c))
4726 while (ISDIGIT (*cp))
4727 v = (v * 10) + (*cp++ - '0');
4731 /* An operator. Pop two two values from the stack and
4732 use them as operands to the given operation. Push
4733 the result of the operation back on the stack. */
4755 while (*cp && *cp != '=');
4757 /* Move over the equal operator. */
4760 /* Pop the RHS off the stack. */
4763 /* Perform the assignment. */
4766 /* Handle side effects. and special 'O' stack cases. */
4769 /* Consume some bytes from the input space. */
4773 /* A symbol to use in the relocation. Make a note
4774 of this if we are not just counting. */
4777 rptr->sym_ptr_ptr = &symbols[c];
4779 /* Argument relocation bits for a function call. */
4783 unsigned int tmp = var ('R');
4786 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4787 && R_PCREL_CALL + 10 > op)
4788 || (som_hppa_howto_table[op].type == R_ABS_CALL
4789 && R_ABS_CALL + 10 > op))
4791 /* Simple encoding. */
4798 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4800 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4802 rptr->addend |= 1 << 8 | 1 << 6;
4804 rptr->addend |= 1 << 8;
4808 unsigned int tmp1, tmp2;
4810 /* First part is easy -- low order two bits are
4811 directly copied, then shifted away. */
4812 rptr->addend = tmp & 0x3;
4815 /* Diving the result by 10 gives us the second
4816 part. If it is 9, then the first two words
4817 are a double precision paramater, else it is
4818 3 * the first arg bits + the 2nd arg bits. */
4822 rptr->addend += (0xe << 6);
4825 /* Get the two pieces. */
4828 /* Put them in the addend. */
4829 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4832 /* What's left is the third part. It's unpacked
4833 just like the second. */
4835 rptr->addend += (0xe << 2);
4840 rptr->addend += (tmp2 << 4) + (tmp << 2);
4843 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4846 /* Handle the linker expression stack. */
4851 subop = comp1_opcodes;
4854 subop = comp2_opcodes;
4857 subop = comp3_opcodes;
4862 while (*subop <= (unsigned char) c)
4866 /* The lower 32unwind bits must be persistent. */
4868 saved_unwind_bits = var ('U');
4876 /* If we used a previous fixup, clean up after it. */
4879 fixup = save_fixup + 1;
4883 else if (fixup > save_fixup + 1)
4884 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4886 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4888 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4889 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4891 /* Done with a single reloction. Loop back to the top. */
4894 if (som_hppa_howto_table[op].type == R_ENTRY)
4895 rptr->addend = var ('T');
4896 else if (som_hppa_howto_table[op].type == R_EXIT)
4897 rptr->addend = var ('U');
4898 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4899 || som_hppa_howto_table[op].type == R_ABS_CALL)
4901 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4903 /* Try what was specified in R_DATA_OVERRIDE first
4904 (if anything). Then the hard way using the
4905 section contents. */
4906 rptr->addend = var ('V');
4908 if (rptr->addend == 0 && !section->contents)
4910 /* Got to read the damn contents first. We don't
4911 bother saving the contents (yet). Add it one
4912 day if the need arises. */
4913 section->contents = bfd_malloc (section->_raw_size);
4914 if (section->contents == NULL)
4915 return (unsigned) -1;
4917 deallocate_contents = 1;
4918 bfd_get_section_contents (section->owner,
4922 section->_raw_size);
4924 else if (rptr->addend == 0)
4925 rptr->addend = bfd_get_32 (section->owner,
4927 + offset - var ('L')));
4931 rptr->addend = var ('V');
4935 /* Now that we've handled a "full" relocation, reset
4937 memset (variables, 0, sizeof (variables));
4938 memset (stack, 0, sizeof (stack));
4941 if (deallocate_contents)
4942 free (section->contents);
4952 /* Read in the relocs (aka fixups in SOM terms) for a section.
4954 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4955 set to TRUE to indicate it only needs a count of the number
4956 of actual relocations. */
4959 som_slurp_reloc_table (abfd, section, symbols, just_count)
4963 bfd_boolean just_count;
4965 char *external_relocs;
4966 unsigned int fixup_stream_size;
4967 arelent *internal_relocs;
4968 unsigned int num_relocs;
4971 fixup_stream_size = som_section_data (section)->reloc_size;
4972 /* If there were no relocations, then there is nothing to do. */
4973 if (section->reloc_count == 0)
4976 /* If reloc_count is -1, then the relocation stream has not been
4977 parsed. We must do so now to know how many relocations exist. */
4978 if (section->reloc_count == (unsigned) -1)
4980 amt = fixup_stream_size;
4981 external_relocs = (char *) bfd_malloc (amt);
4982 if (external_relocs == (char *) NULL)
4984 /* Read in the external forms. */
4986 obj_som_reloc_filepos (abfd) + section->rel_filepos,
4990 if (bfd_bread (external_relocs, amt, abfd) != amt)
4993 /* Let callers know how many relocations found.
4994 also save the relocation stream as we will
4996 section->reloc_count = som_set_reloc_info (external_relocs,
4998 NULL, NULL, NULL, TRUE);
5000 som_section_data (section)->reloc_stream = external_relocs;
5003 /* If the caller only wanted a count, then return now. */
5007 num_relocs = section->reloc_count;
5008 external_relocs = som_section_data (section)->reloc_stream;
5009 /* Return saved information about the relocations if it is available. */
5010 if (section->relocation != (arelent *) NULL)
5014 amt *= sizeof (arelent);
5015 internal_relocs = (arelent *) bfd_zalloc (abfd, (amt));
5016 if (internal_relocs == (arelent *) NULL)
5019 /* Process and internalize the relocations. */
5020 som_set_reloc_info (external_relocs, fixup_stream_size,
5021 internal_relocs, section, symbols, FALSE);
5023 /* We're done with the external relocations. Free them. */
5024 free (external_relocs);
5025 som_section_data (section)->reloc_stream = NULL;
5027 /* Save our results and return success. */
5028 section->relocation = internal_relocs;
5032 /* Return the number of bytes required to store the relocation
5033 information associated with the given section. */
5036 som_get_reloc_upper_bound (abfd, asect)
5040 /* If section has relocations, then read in the relocation stream
5041 and parse it to determine how many relocations exist. */
5042 if (asect->flags & SEC_RELOC)
5044 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5046 return (asect->reloc_count + 1) * sizeof (arelent *);
5048 /* There are no relocations. */
5052 /* Convert relocations from SOM (external) form into BFD internal
5053 form. Return the number of relocations. */
5056 som_canonicalize_reloc (abfd, section, relptr, symbols)
5065 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5068 count = section->reloc_count;
5069 tblptr = section->relocation;
5072 *relptr++ = tblptr++;
5074 *relptr = (arelent *) NULL;
5075 return section->reloc_count;
5078 extern const bfd_target som_vec;
5080 /* A hook to set up object file dependent section information. */
5083 som_new_section_hook (abfd, newsect)
5087 bfd_size_type amt = sizeof (struct som_section_data_struct);
5088 newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
5089 if (!newsect->used_by_bfd)
5091 newsect->alignment_power = 3;
5093 /* We allow more than three sections internally. */
5097 /* Copy any private info we understand from the input symbol
5098 to the output symbol. */
5101 som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
5107 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5108 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5110 /* One day we may try to grok other private data. */
5111 if (ibfd->xvec->flavour != bfd_target_som_flavour
5112 || obfd->xvec->flavour != bfd_target_som_flavour)
5115 /* The only private information we need to copy is the argument relocation
5117 output_symbol->tc_data.ap.hppa_arg_reloc =
5118 input_symbol->tc_data.ap.hppa_arg_reloc;
5123 /* Copy any private info we understand from the input section
5124 to the output section. */
5127 som_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
5135 /* One day we may try to grok other private data. */
5136 if (ibfd->xvec->flavour != bfd_target_som_flavour
5137 || obfd->xvec->flavour != bfd_target_som_flavour
5138 || (!som_is_space (isection) && !som_is_subspace (isection)))
5141 amt = sizeof (struct som_copyable_section_data_struct);
5142 som_section_data (osection)->copy_data =
5143 (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt);
5144 if (som_section_data (osection)->copy_data == NULL)
5147 memcpy (som_section_data (osection)->copy_data,
5148 som_section_data (isection)->copy_data,
5149 sizeof (struct som_copyable_section_data_struct));
5151 /* Reparent if necessary. */
5152 if (som_section_data (osection)->copy_data->container)
5153 som_section_data (osection)->copy_data->container =
5154 som_section_data (osection)->copy_data->container->output_section;
5159 /* Copy any private info we understand from the input bfd
5160 to the output bfd. */
5163 som_bfd_copy_private_bfd_data (ibfd, obfd)
5166 /* One day we may try to grok other private data. */
5167 if (ibfd->xvec->flavour != bfd_target_som_flavour
5168 || obfd->xvec->flavour != bfd_target_som_flavour)
5171 /* Allocate some memory to hold the data we need. */
5172 obj_som_exec_data (obfd) = (struct som_exec_data *)
5173 bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5174 if (obj_som_exec_data (obfd) == NULL)
5177 /* Now copy the data. */
5178 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5179 sizeof (struct som_exec_data));
5184 /* Set backend info for sections which can not be described
5185 in the BFD data structures. */
5188 bfd_som_set_section_attributes (section, defined, private, sort_key, spnum)
5192 unsigned int sort_key;
5195 /* Allocate memory to hold the magic information. */
5196 if (som_section_data (section)->copy_data == NULL)
5198 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5199 som_section_data (section)->copy_data =
5200 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5202 if (som_section_data (section)->copy_data == NULL)
5205 som_section_data (section)->copy_data->sort_key = sort_key;
5206 som_section_data (section)->copy_data->is_defined = defined;
5207 som_section_data (section)->copy_data->is_private = private;
5208 som_section_data (section)->copy_data->container = section;
5209 som_section_data (section)->copy_data->space_number = spnum;
5213 /* Set backend info for subsections which can not be described
5214 in the BFD data structures. */
5217 bfd_som_set_subsection_attributes (section, container, access,
5220 asection *container;
5222 unsigned int sort_key;
5225 /* Allocate memory to hold the magic information. */
5226 if (som_section_data (section)->copy_data == NULL)
5228 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5229 som_section_data (section)->copy_data =
5230 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5232 if (som_section_data (section)->copy_data == NULL)
5235 som_section_data (section)->copy_data->sort_key = sort_key;
5236 som_section_data (section)->copy_data->access_control_bits = access;
5237 som_section_data (section)->copy_data->quadrant = quadrant;
5238 som_section_data (section)->copy_data->container = container;
5242 /* Set the full SOM symbol type. SOM needs far more symbol information
5243 than any other object file format I'm aware of. It is mandatory
5244 to be able to know if a symbol is an entry point, millicode, data,
5245 code, absolute, storage request, or procedure label. If you get
5246 the symbol type wrong your program will not link. */
5249 bfd_som_set_symbol_type (symbol, type)
5253 som_symbol_data (symbol)->som_type = type;
5256 /* Attach an auxiliary header to the BFD backend so that it may be
5257 written into the object file. */
5260 bfd_som_attach_aux_hdr (abfd, type, string)
5267 if (type == VERSION_AUX_ID)
5269 size_t len = strlen (string);
5273 pad = (4 - (len % 4));
5274 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5275 obj_som_version_hdr (abfd) =
5276 (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt);
5277 if (!obj_som_version_hdr (abfd))
5279 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5280 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5281 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5282 obj_som_version_hdr (abfd)->string_length = len;
5283 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5285 else if (type == COPYRIGHT_AUX_ID)
5287 int len = strlen (string);
5291 pad = (4 - (len % 4));
5292 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5293 obj_som_copyright_hdr (abfd) =
5294 (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt);
5295 if (!obj_som_copyright_hdr (abfd))
5297 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5298 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5299 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5300 obj_som_copyright_hdr (abfd)->string_length = len;
5301 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5306 /* Attach an compilation unit header to the BFD backend so that it may be
5307 written into the object file. */
5310 bfd_som_attach_compilation_unit (abfd, name, language_name, product_id,
5314 const char *language_name;
5315 const char *product_id;
5316 const char *version_id;
5318 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5325 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5326 if (n->f.n_name == NULL) \
5328 strcpy (n->f.n_name, f); \
5332 STRDUP (language_name);
5333 STRDUP (product_id);
5334 STRDUP (version_id);
5338 obj_som_compilation_unit (abfd) = n;
5344 som_get_section_contents (abfd, section, location, offset, count)
5349 bfd_size_type count;
5351 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5353 if ((bfd_size_type) (offset+count) > section->_raw_size
5354 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5355 || bfd_bread (location, count, abfd) != count)
5356 return FALSE; /* on error */
5361 som_set_section_contents (abfd, section, location, offset, count)
5366 bfd_size_type count;
5368 if (! abfd->output_has_begun)
5370 /* Set up fixed parts of the file, space, and subspace headers.
5371 Notify the world that output has begun. */
5372 som_prep_headers (abfd);
5373 abfd->output_has_begun = TRUE;
5374 /* Start writing the object file. This include all the string
5375 tables, fixup streams, and other portions of the object file. */
5376 som_begin_writing (abfd);
5379 /* Only write subspaces which have "real" contents (eg. the contents
5380 are not generated at run time by the OS). */
5381 if (!som_is_subspace (section)
5382 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5385 /* Seek to the proper offset within the object file and write the
5387 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5388 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5391 if (bfd_bwrite ((PTR) location, count, abfd) != count)
5397 som_set_arch_mach (abfd, arch, machine)
5399 enum bfd_architecture arch;
5400 unsigned long machine;
5402 /* Allow any architecture to be supported by the SOM backend. */
5403 return bfd_default_set_arch_mach (abfd, arch, machine);
5407 som_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
5408 functionname_ptr, line_ptr)
5409 bfd *abfd ATTRIBUTE_UNUSED;
5410 asection *section ATTRIBUTE_UNUSED;
5411 asymbol **symbols ATTRIBUTE_UNUSED;
5412 bfd_vma offset ATTRIBUTE_UNUSED;
5413 const char **filename_ptr ATTRIBUTE_UNUSED;
5414 const char **functionname_ptr ATTRIBUTE_UNUSED;
5415 unsigned int *line_ptr ATTRIBUTE_UNUSED;
5421 som_sizeof_headers (abfd, reloc)
5422 bfd *abfd ATTRIBUTE_UNUSED;
5423 bfd_boolean reloc ATTRIBUTE_UNUSED;
5425 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5431 /* Return the single-character symbol type corresponding to
5432 SOM section S, or '?' for an unknown SOM section. */
5435 som_section_type (s)
5438 const struct section_to_type *t;
5440 for (t = &stt[0]; t->section; t++)
5441 if (!strcmp (s, t->section))
5447 som_decode_symclass (symbol)
5452 if (bfd_is_com_section (symbol->section))
5454 if (bfd_is_und_section (symbol->section))
5456 if (bfd_is_ind_section (symbol->section))
5458 if (symbol->flags & BSF_WEAK)
5460 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5463 if (bfd_is_abs_section (symbol->section)
5464 || (som_symbol_data (symbol) != NULL
5465 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5467 else if (symbol->section)
5468 c = som_section_type (symbol->section->name);
5471 if (symbol->flags & BSF_GLOBAL)
5476 /* Return information about SOM symbol SYMBOL in RET. */
5479 som_get_symbol_info (ignore_abfd, symbol, ret)
5480 bfd *ignore_abfd ATTRIBUTE_UNUSED;
5484 ret->type = som_decode_symclass (symbol);
5485 if (ret->type != 'U')
5486 ret->value = symbol->value + symbol->section->vma;
5489 ret->name = symbol->name;
5492 /* Count the number of symbols in the archive symbol table. Necessary
5493 so that we can allocate space for all the carsyms at once. */
5496 som_bfd_count_ar_symbols (abfd, lst_header, count)
5498 struct lst_header *lst_header;
5502 unsigned int *hash_table = NULL;
5504 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5506 amt = lst_header->hash_size;
5507 amt *= sizeof (unsigned int);
5508 hash_table = (unsigned int *) bfd_malloc (amt);
5509 if (hash_table == NULL && lst_header->hash_size != 0)
5512 /* Don't forget to initialize the counter! */
5515 /* Read in the hash table. The has table is an array of 32bit file offsets
5516 which point to the hash chains. */
5517 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5520 /* Walk each chain counting the number of symbols found on that particular
5522 for (i = 0; i < lst_header->hash_size; i++)
5524 struct lst_symbol_record lst_symbol;
5526 /* An empty chain has zero as it's file offset. */
5527 if (hash_table[i] == 0)
5530 /* Seek to the first symbol in this hash chain. */
5531 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5534 /* Read in this symbol and update the counter. */
5535 amt = sizeof (lst_symbol);
5536 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5541 /* Now iterate through the rest of the symbols on this chain. */
5542 while (lst_symbol.next_entry)
5545 /* Seek to the next symbol. */
5546 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5550 /* Read the symbol in and update the counter. */
5551 amt = sizeof (lst_symbol);
5552 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5558 if (hash_table != NULL)
5563 if (hash_table != NULL)
5568 /* Fill in the canonical archive symbols (SYMS) from the archive described
5569 by ABFD and LST_HEADER. */
5572 som_bfd_fill_in_ar_symbols (abfd, lst_header, syms)
5574 struct lst_header *lst_header;
5577 unsigned int i, len;
5578 carsym *set = syms[0];
5579 unsigned int *hash_table = NULL;
5580 struct som_entry *som_dict = NULL;
5582 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5584 amt = lst_header->hash_size;
5585 amt *= sizeof (unsigned int);
5586 hash_table = (unsigned int *) bfd_malloc (amt);
5587 if (hash_table == NULL && lst_header->hash_size != 0)
5590 /* Read in the hash table. The has table is an array of 32bit file offsets
5591 which point to the hash chains. */
5592 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5595 /* Seek to and read in the SOM dictionary. We will need this to fill
5596 in the carsym's filepos field. */
5597 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5600 amt = lst_header->module_count;
5601 amt *= sizeof (struct som_entry);
5602 som_dict = (struct som_entry *) bfd_malloc (amt);
5603 if (som_dict == NULL && lst_header->module_count != 0)
5606 if (bfd_bread ((PTR) som_dict, amt, abfd) != amt)
5609 /* Walk each chain filling in the carsyms as we go along. */
5610 for (i = 0; i < lst_header->hash_size; i++)
5612 struct lst_symbol_record lst_symbol;
5614 /* An empty chain has zero as it's file offset. */
5615 if (hash_table[i] == 0)
5618 /* Seek to and read the first symbol on the chain. */
5619 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5622 amt = sizeof (lst_symbol);
5623 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5626 /* Get the name of the symbol, first get the length which is stored
5627 as a 32bit integer just before the symbol.
5629 One might ask why we don't just read in the entire string table
5630 and index into it. Well, according to the SOM ABI the string
5631 index can point *anywhere* in the archive to save space, so just
5632 using the string table would not be safe. */
5633 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5634 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5637 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5640 /* Allocate space for the name and null terminate it too. */
5641 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5644 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5649 /* Fill in the file offset. Note that the "location" field points
5650 to the SOM itself, not the ar_hdr in front of it. */
5651 set->file_offset = som_dict[lst_symbol.som_index].location
5652 - sizeof (struct ar_hdr);
5654 /* Go to the next symbol. */
5657 /* Iterate through the rest of the chain. */
5658 while (lst_symbol.next_entry)
5660 /* Seek to the next symbol and read it in. */
5661 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5665 amt = sizeof (lst_symbol);
5666 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5669 /* Seek to the name length & string and read them in. */
5670 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5671 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5674 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5677 /* Allocate space for the name and null terminate it too. */
5678 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5682 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5686 /* Fill in the file offset. Note that the "location" field points
5687 to the SOM itself, not the ar_hdr in front of it. */
5688 set->file_offset = som_dict[lst_symbol.som_index].location
5689 - sizeof (struct ar_hdr);
5691 /* Go on to the next symbol. */
5695 /* If we haven't died by now, then we successfully read the entire
5696 archive symbol table. */
5697 if (hash_table != NULL)
5699 if (som_dict != NULL)
5704 if (hash_table != NULL)
5706 if (som_dict != NULL)
5711 /* Read in the LST from the archive. */
5714 som_slurp_armap (abfd)
5717 struct lst_header lst_header;
5718 struct ar_hdr ar_header;
5719 unsigned int parsed_size;
5720 struct artdata *ardata = bfd_ardata (abfd);
5722 bfd_size_type amt = 16;
5723 int i = bfd_bread ((PTR) nextname, amt, abfd);
5725 /* Special cases. */
5731 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5734 /* For archives without .o files there is no symbol table. */
5735 if (strncmp (nextname, "/ ", 16))
5737 bfd_has_map (abfd) = FALSE;
5741 /* Read in and sanity check the archive header. */
5742 amt = sizeof (struct ar_hdr);
5743 if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt)
5746 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5748 bfd_set_error (bfd_error_malformed_archive);
5752 /* How big is the archive symbol table entry? */
5754 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5757 bfd_set_error (bfd_error_malformed_archive);
5761 /* Save off the file offset of the first real user data. */
5762 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5764 /* Read in the library symbol table. We'll make heavy use of this
5765 in just a minute. */
5766 amt = sizeof (struct lst_header);
5767 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
5771 if (lst_header.a_magic != LIBMAGIC)
5773 bfd_set_error (bfd_error_malformed_archive);
5777 /* Count the number of symbols in the library symbol table. */
5778 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
5781 /* Get back to the start of the library symbol table. */
5782 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5783 + sizeof (struct lst_header)), SEEK_SET) != 0)
5786 /* Initializae the cache and allocate space for the library symbols. */
5788 amt = ardata->symdef_count;
5789 amt *= sizeof (carsym);
5790 ardata->symdefs = (carsym *) bfd_alloc (abfd, amt);
5791 if (!ardata->symdefs)
5794 /* Now fill in the canonical archive symbols. */
5795 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
5798 /* Seek back to the "first" file in the archive. Note the "first"
5799 file may be the extended name table. */
5800 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5803 /* Notify the generic archive code that we have a symbol map. */
5804 bfd_has_map (abfd) = TRUE;
5808 /* Begin preparing to write a SOM library symbol table.
5810 As part of the prep work we need to determine the number of symbols
5811 and the size of the associated string section. */
5814 som_bfd_prep_for_ar_write (abfd, num_syms, stringsize)
5816 unsigned int *num_syms, *stringsize;
5818 bfd *curr_bfd = abfd->archive_head;
5820 /* Some initialization. */
5824 /* Iterate over each BFD within this archive. */
5825 while (curr_bfd != NULL)
5827 unsigned int curr_count, i;
5828 som_symbol_type *sym;
5830 /* Don't bother for non-SOM objects. */
5831 if (curr_bfd->format != bfd_object
5832 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5834 curr_bfd = curr_bfd->next;
5838 /* Make sure the symbol table has been read, then snag a pointer
5839 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5840 but doing so avoids allocating lots of extra memory. */
5841 if (! som_slurp_symbol_table (curr_bfd))
5844 sym = obj_som_symtab (curr_bfd);
5845 curr_count = bfd_get_symcount (curr_bfd);
5847 /* Examine each symbol to determine if it belongs in the
5848 library symbol table. */
5849 for (i = 0; i < curr_count; i++, sym++)
5851 struct som_misc_symbol_info info;
5853 /* Derive SOM information from the BFD symbol. */
5854 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5856 /* Should we include this symbol? */
5857 if (info.symbol_type == ST_NULL
5858 || info.symbol_type == ST_SYM_EXT
5859 || info.symbol_type == ST_ARG_EXT)
5862 /* Only global symbols and unsatisfied commons. */
5863 if (info.symbol_scope != SS_UNIVERSAL
5864 && info.symbol_type != ST_STORAGE)
5867 /* Do no include undefined symbols. */
5868 if (bfd_is_und_section (sym->symbol.section))
5871 /* Bump the various counters, being careful to honor
5872 alignment considerations in the string table. */
5874 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5875 while (*stringsize % 4)
5879 curr_bfd = curr_bfd->next;
5884 /* Hash a symbol name based on the hashing algorithm presented in the
5888 som_bfd_ar_symbol_hash (symbol)
5891 unsigned int len = strlen (symbol->name);
5893 /* Names with length 1 are special. */
5895 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5897 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5898 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5901 /* Do the bulk of the work required to write the SOM library
5905 som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength)
5907 unsigned int nsyms, string_size;
5908 struct lst_header lst;
5911 file_ptr lst_filepos;
5912 char *strings = NULL, *p;
5913 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5915 unsigned int *hash_table = NULL;
5916 struct som_entry *som_dict = NULL;
5917 struct lst_symbol_record **last_hash_entry = NULL;
5918 unsigned int curr_som_offset, som_index = 0;
5921 amt = lst.hash_size;
5922 amt *= sizeof (unsigned int);
5923 hash_table = (unsigned int *) bfd_zmalloc (amt);
5924 if (hash_table == NULL && lst.hash_size != 0)
5927 amt = lst.module_count;
5928 amt *= sizeof (struct som_entry);
5929 som_dict = (struct som_entry *) bfd_zmalloc (amt);
5930 if (som_dict == NULL && lst.module_count != 0)
5933 amt = lst.hash_size;
5934 amt *= sizeof (struct lst_symbol_record *);
5935 last_hash_entry = ((struct lst_symbol_record **) bfd_zmalloc (amt));
5936 if (last_hash_entry == NULL && lst.hash_size != 0)
5939 /* Lots of fields are file positions relative to the start
5940 of the lst record. So save its location. */
5941 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5943 /* Symbols have som_index fields, so we have to keep track of the
5944 index of each SOM in the archive.
5946 The SOM dictionary has (among other things) the absolute file
5947 position for the SOM which a particular dictionary entry
5948 describes. We have to compute that information as we iterate
5949 through the SOMs/symbols. */
5952 /* We add in the size of the archive header twice as the location
5953 in the SOM dictionary is the actual offset of the SOM, not the
5954 archive header before the SOM. */
5955 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
5957 /* Make room for the archive header and the contents of the
5958 extended string table. Note that elength includes the size
5959 of the archive header for the extended name table! */
5961 curr_som_offset += elength;
5963 /* Make sure we're properly aligned. */
5964 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
5966 /* FIXME should be done with buffers just like everything else... */
5968 amt *= sizeof (struct lst_symbol_record);
5969 lst_syms = bfd_malloc (amt);
5970 if (lst_syms == NULL && nsyms != 0)
5972 strings = bfd_malloc ((bfd_size_type) string_size);
5973 if (strings == NULL && string_size != 0)
5977 curr_lst_sym = lst_syms;
5979 curr_bfd = abfd->archive_head;
5980 while (curr_bfd != NULL)
5982 unsigned int curr_count, i;
5983 som_symbol_type *sym;
5985 /* Don't bother for non-SOM objects. */
5986 if (curr_bfd->format != bfd_object
5987 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5989 curr_bfd = curr_bfd->next;
5993 /* Make sure the symbol table has been read, then snag a pointer
5994 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5995 but doing so avoids allocating lots of extra memory. */
5996 if (! som_slurp_symbol_table (curr_bfd))
5999 sym = obj_som_symtab (curr_bfd);
6000 curr_count = bfd_get_symcount (curr_bfd);
6002 for (i = 0; i < curr_count; i++, sym++)
6004 struct som_misc_symbol_info info;
6006 /* Derive SOM information from the BFD symbol. */
6007 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6009 /* Should we include this symbol? */
6010 if (info.symbol_type == ST_NULL
6011 || info.symbol_type == ST_SYM_EXT
6012 || info.symbol_type == ST_ARG_EXT)
6015 /* Only global symbols and unsatisfied commons. */
6016 if (info.symbol_scope != SS_UNIVERSAL
6017 && info.symbol_type != ST_STORAGE)
6020 /* Do no include undefined symbols. */
6021 if (bfd_is_und_section (sym->symbol.section))
6024 /* If this is the first symbol from this SOM, then update
6025 the SOM dictionary too. */
6026 if (som_dict[som_index].location == 0)
6028 som_dict[som_index].location = curr_som_offset;
6029 som_dict[som_index].length = arelt_size (curr_bfd);
6032 /* Fill in the lst symbol record. */
6033 curr_lst_sym->hidden = 0;
6034 curr_lst_sym->secondary_def = info.secondary_def;
6035 curr_lst_sym->symbol_type = info.symbol_type;
6036 curr_lst_sym->symbol_scope = info.symbol_scope;
6037 curr_lst_sym->check_level = 0;
6038 curr_lst_sym->must_qualify = 0;
6039 curr_lst_sym->initially_frozen = 0;
6040 curr_lst_sym->memory_resident = 0;
6041 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6042 curr_lst_sym->dup_common = 0;
6043 curr_lst_sym->xleast = 3;
6044 curr_lst_sym->arg_reloc = info.arg_reloc;
6045 curr_lst_sym->name.n_strx = p - strings + 4;
6046 curr_lst_sym->qualifier_name.n_strx = 0;
6047 curr_lst_sym->symbol_info = info.symbol_info;
6048 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6049 curr_lst_sym->symbol_descriptor = 0;
6050 curr_lst_sym->reserved = 0;
6051 curr_lst_sym->som_index = som_index;
6052 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6053 curr_lst_sym->next_entry = 0;
6055 /* Insert into the hash table. */
6056 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6058 struct lst_symbol_record *tmp;
6060 /* There is already something at the head of this hash chain,
6061 so tack this symbol onto the end of the chain. */
6062 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6064 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6066 + lst.module_count * sizeof (struct som_entry)
6067 + sizeof (struct lst_header);
6071 /* First entry in this hash chain. */
6072 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6073 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6075 + lst.module_count * sizeof (struct som_entry)
6076 + sizeof (struct lst_header);
6079 /* Keep track of the last symbol we added to this chain so we can
6080 easily update its next_entry pointer. */
6081 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6084 /* Update the string table. */
6085 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6087 strcpy (p, sym->symbol.name);
6088 p += strlen (sym->symbol.name) + 1;
6091 bfd_put_8 (abfd, 0, p);
6095 /* Head to the next symbol. */
6099 /* Keep track of where each SOM will finally reside; then look
6101 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6103 /* A particular object in the archive may have an odd length; the
6104 linker requires objects begin on an even boundary. So round
6105 up the current offset as necessary. */
6106 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6107 curr_bfd = curr_bfd->next;
6111 /* Now scribble out the hash table. */
6112 amt = lst.hash_size * 4;
6113 if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt)
6116 /* Then the SOM dictionary. */
6117 amt = lst.module_count * sizeof (struct som_entry);
6118 if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt)
6121 /* The library symbols. */
6122 amt = nsyms * sizeof (struct lst_symbol_record);
6123 if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt)
6126 /* And finally the strings. */
6128 if (bfd_bwrite ((PTR) strings, amt, abfd) != amt)
6131 if (hash_table != NULL)
6133 if (som_dict != NULL)
6135 if (last_hash_entry != NULL)
6136 free (last_hash_entry);
6137 if (lst_syms != NULL)
6139 if (strings != NULL)
6144 if (hash_table != NULL)
6146 if (som_dict != NULL)
6148 if (last_hash_entry != NULL)
6149 free (last_hash_entry);
6150 if (lst_syms != NULL)
6152 if (strings != NULL)
6158 /* Write out the LST for the archive.
6160 You'll never believe this is really how armaps are handled in SOM... */
6163 som_write_armap (abfd, elength, map, orl_count, stridx)
6165 unsigned int elength;
6166 struct orl *map ATTRIBUTE_UNUSED;
6167 unsigned int orl_count ATTRIBUTE_UNUSED;
6168 int stridx ATTRIBUTE_UNUSED;
6171 struct stat statbuf;
6172 unsigned int i, lst_size, nsyms, stringsize;
6174 struct lst_header lst;
6178 /* We'll use this for the archive's date and mode later. */
6179 if (stat (abfd->filename, &statbuf) != 0)
6181 bfd_set_error (bfd_error_system_call);
6185 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6187 /* Account for the lst header first. */
6188 lst_size = sizeof (struct lst_header);
6190 /* Start building the LST header. */
6191 /* FIXME: Do we need to examine each element to determine the
6192 largest id number? */
6193 lst.system_id = CPU_PA_RISC1_0;
6194 lst.a_magic = LIBMAGIC;
6195 lst.version_id = VERSION_ID;
6196 lst.file_time.secs = 0;
6197 lst.file_time.nanosecs = 0;
6199 lst.hash_loc = lst_size;
6200 lst.hash_size = SOM_LST_HASH_SIZE;
6202 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6203 lst_size += 4 * SOM_LST_HASH_SIZE;
6205 /* We need to count the number of SOMs in this archive. */
6206 curr_bfd = abfd->archive_head;
6207 lst.module_count = 0;
6208 while (curr_bfd != NULL)
6210 /* Only true SOM objects count. */
6211 if (curr_bfd->format == bfd_object
6212 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6214 curr_bfd = curr_bfd->next;
6216 lst.module_limit = lst.module_count;
6217 lst.dir_loc = lst_size;
6218 lst_size += sizeof (struct som_entry) * lst.module_count;
6220 /* We don't support import/export tables, auxiliary headers,
6221 or free lists yet. Make the linker work a little harder
6222 to make our life easier. */
6225 lst.export_count = 0;
6230 /* Count how many symbols we will have on the hash chains and the
6231 size of the associated string table. */
6232 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6235 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6237 /* For the string table. One day we might actually use this info
6238 to avoid small seeks/reads when reading archives. */
6239 lst.string_loc = lst_size;
6240 lst.string_size = stringsize;
6241 lst_size += stringsize;
6243 /* SOM ABI says this must be zero. */
6245 lst.file_end = lst_size;
6247 /* Compute the checksum. Must happen after the entire lst header
6251 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6252 lst.checksum ^= *p++;
6254 sprintf (hdr.ar_name, "/ ");
6255 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6256 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6257 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6258 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6259 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6260 hdr.ar_fmag[0] = '`';
6261 hdr.ar_fmag[1] = '\012';
6263 /* Turn any nulls into spaces. */
6264 for (i = 0; i < sizeof (struct ar_hdr); i++)
6265 if (((char *) (&hdr))[i] == '\0')
6266 (((char *) (&hdr))[i]) = ' ';
6268 /* Scribble out the ar header. */
6269 amt = sizeof (struct ar_hdr);
6270 if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt)
6273 /* Now scribble out the lst header. */
6274 amt = sizeof (struct lst_header);
6275 if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt)
6278 /* Build and write the armap. */
6279 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6286 /* Free all information we have cached for this BFD. We can always
6287 read it again later if we need it. */
6290 som_bfd_free_cached_info (abfd)
6295 if (bfd_get_format (abfd) != bfd_object)
6298 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6299 /* Free the native string and symbol tables. */
6300 FREE (obj_som_symtab (abfd));
6301 FREE (obj_som_stringtab (abfd));
6302 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
6304 /* Free the native relocations. */
6305 o->reloc_count = (unsigned) -1;
6306 FREE (som_section_data (o)->reloc_stream);
6307 /* Free the generic relocations. */
6308 FREE (o->relocation);
6315 /* End of miscellaneous support functions. */
6317 /* Linker support functions. */
6320 som_bfd_link_split_section (abfd, sec)
6321 bfd *abfd ATTRIBUTE_UNUSED;
6324 return (som_is_subspace (sec) && sec->_raw_size > 240000);
6327 #define som_close_and_cleanup som_bfd_free_cached_info
6329 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6330 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6331 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6332 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6333 #define som_truncate_arname bfd_bsd_truncate_arname
6334 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6335 #define som_construct_extended_name_table \
6336 _bfd_archive_coff_construct_extended_name_table
6337 #define som_update_armap_timestamp bfd_true
6338 #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
6340 #define som_get_lineno _bfd_nosymbols_get_lineno
6341 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6342 #define som_read_minisymbols _bfd_generic_read_minisymbols
6343 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6344 #define som_get_section_contents_in_window \
6345 _bfd_generic_get_section_contents_in_window
6347 #define som_bfd_get_relocated_section_contents \
6348 bfd_generic_get_relocated_section_contents
6349 #define som_bfd_relax_section bfd_generic_relax_section
6350 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6351 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6352 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6353 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6354 #define som_bfd_final_link _bfd_generic_final_link
6356 #define som_bfd_gc_sections bfd_generic_gc_sections
6357 #define som_bfd_merge_sections bfd_generic_merge_sections
6358 #define som_bfd_discard_group bfd_generic_discard_group
6360 const bfd_target som_vec = {
6362 bfd_target_som_flavour,
6363 BFD_ENDIAN_BIG, /* target byte order */
6364 BFD_ENDIAN_BIG, /* target headers byte order */
6365 (HAS_RELOC | EXEC_P | /* object flags */
6366 HAS_LINENO | HAS_DEBUG |
6367 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6368 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
6369 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
6371 /* leading_symbol_char: is the first char of a user symbol
6372 predictable, and if so what is it */
6374 '/', /* ar_pad_char */
6375 14, /* ar_max_namelen */
6376 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6377 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6378 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
6379 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6380 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6381 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
6383 som_object_p, /* bfd_check_format */
6384 bfd_generic_archive_p,
6390 _bfd_generic_mkarchive,
6395 som_write_object_contents,
6396 _bfd_write_archive_contents,
6401 BFD_JUMP_TABLE_GENERIC (som),
6402 BFD_JUMP_TABLE_COPY (som),
6403 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6404 BFD_JUMP_TABLE_ARCHIVE (som),
6405 BFD_JUMP_TABLE_SYMBOLS (som),
6406 BFD_JUMP_TABLE_RELOCS (som),
6407 BFD_JUMP_TABLE_WRITE (som),
6408 BFD_JUMP_TABLE_LINK (som),
6409 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6416 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */